In one sentence, describe what the following article is about: If your local transit system supports the Apple Wallet's Express Transit mode, you can use the Wallet app to pay for public transit rides. If you're in the US, you can use Express Transit mode in New York City (MTA) and Portland, OR (Trimet). This service is also available across Beijing and Shanghai China, as well as Japan (Suica). Follow this link to see which regions' transit systems support Express Transit mode. This app is on one of your home screens. It's a few screens down. As long as you've added a payment card you should see this option. The card you select is the one that will be billed for your public transit rides. Once you've confirmed your identity with Face ID, Touch ID, or a passcode, your iPhone will be ready to use where supported. There's no need to unlock your phone in Express Transmit modejust hold the phone near the reader to charge your default Express Transit card and be on your way.
Summary: Add a compatible credit or debit card to your Wallet. Open your iPhone's Settings . Scroll down and tap Wallet & Apple Pay . Tap Express Transit Card. Tap the card you want to use. Follow the on-screen instructions to authenticate. Hold your iPhone a few centimeters from the contactless reader to pay.

This "substitution" method starts out by "solving for x" (or any other variable) in one of the equations. For example, let's say your equations are 4x + 2y = 8 and 5x + 3y = 9. Start by looking just at the first equation. Rearrange it by subtracting 2y from each side, to get: 4x = 8 - 2y. This method often uses fractions later on. You can try the elimination method below instead if you don't like fractions. " Once you have the x term (or whichever variable you are using) on one side of the equation, divide both sides of the equation to get the variable alone. For example: 4x = 8 - 2y (4x)/4 = (8/4) - (2y/4) x = 2 - y Make sure you go back to the other equation, not the one you've already used. In that equation, replace the variable you solved for so only one variable is left. For example: You know that x = 2 - y. Your second equation, that you haven't yet altered, is 5x + 3y = 9. In the second equation, replace x with "2 - y": 5(2 - y) + 3y = 9. You know have an equation with only one variable. Use ordinary algebra techniques to solve for that variable. If your variables cancel out, skip ahead to the last step. Otherwise, you'll end up with an answer for one of your variables: 5(2 - y) + 3y = 9 10 (5/2)y + 3y = 9 10 (5/2)y + (6/2)y = 9 (If you don't understand this step, learn how to add fractions. This is often, but not always, necessary for this method.) 10 + y = 9 y = -1 y = -2 Don't make the mistake of leaving the problem half-finished. You'll need to plug the answer you got back into one of the original equations, so you can solve for the other variable: You know that y = -2 One of the original equations is 4x + 2y = 8. (You can use either equation for this step.) Plug in -2 instead of y: 4x + 2(-2) = 8. 4x - 4 = 8 4x = 12 x = 3 When you plug x=3y+2 or a similar answer into the other equation, you're trying to get an equation with only one variable. Sometimes, you end up with an equation with no variables instead. Double check your work, and make sure you are plugging the (rearranged) equation one into equation two, not just back into equation one again. If you're confident you didn't make any mistakes, you have one of the following results: If you end up with an equation that has no variables and isn't true (for instance, 3 = 5), the problem has no solution. (If you graphed both of the equations, you'd see they were parallel and never intersect.) If you end up with an equation without variables that is true (such as 3 = 3), the problem has infinite solutions. The two equations are exactly equal to each other. (If you graphed the two equations, you'd see they were the same line.)
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One-sentence summary -- Move the variables to different sides of the equation. Divide both sides of the equation to "solve for x. Plug this back into the other equation. Solve for the remaining variable. Use the answer to solve for the other variable. Know what to do when both variables cancel out.

Problem: Article: While you may know that becoming a cartoonist is your ultimate goal, consider specializing in broad areas, like Multimedia art and animation. Multi-media artists make a median salary of $61, 370 a year and often have more stable, full time work than freelance cartoonists. Multimedia art will give you valuable skills in computer programming and how to create graphics using different design software. You will get to build your storyboarding skills as your learn to create visuals for video games, films and other media. While your coursework will add significantly to your portfolio, continue to seek out freelance opportunities with other clients while you are in college. Look to your local newspapers or magazines to see if you can do any temporary projects with them. Consider focusing on a specialization in cartoons. Do you want to write political cartoons, comic books or graphic novels? Do you want to draw animated cartoons for film and television? Try your hand at each of these categories to see which one you enjoy the most. Your college newspaper or art review will also be great sources to publish your work. Consider applying to join the editorial team on these publications. Apply for art prizes and competitions. These might be hosted by your school's art department, your local arts alliance or by a larger institution, like the National Endowment for the Arts. Gaining accolades while you are in college will help strengthen the worth of your portfolio. A cartoonist is often not just tasked with creating a drawing using pencil and paper. Often you will be required to learn other skills, especially if you want to illustrate for comic books or comic strips. Look into taking classes that specialize in some of the following skills or professional roles: Pencil work Colorist Designing letter work for comic books Ink work Although you will produce many cartoons for class projects, you should also look into getting an internship with a reputable company in your field. This experience can be a launching point for your career in that field. Some excellent companies include: DC Comics Marvel Comics Dark Horse Comics Walt Disney Imagineering Fisher-Price Research these companies to find out if they offer any internship opportunities during the summer or school year for students. You should generally plan to apply in the semester before you want to take the internship.
Summary:
Take a variety of courses. Expand your portfolio. Learn important skills. Get a valuable internship or apprenticeship.