options: Write and interpret numerical expressions.

Work with equal groups of objects to gain foundations for multiplication.

Rewrite rational expressions.

Represent and analyze quantitative relationships between dependent and independent variables.

Solve problems involving the four operations, and identify and explain patterns in arithmetic.

Solve systems of equations.

Create equations that describe numbers or relationships

Perform arithmetic operations on polynomials.

Understand properties of multiplication and the relationship between multiplication and division.

Solve real-life and mathematical problems using numerical and algebraic expressions and equations.

Represent and solve equations and inequalities graphically.

Generate and analyze patterns.

Apply and extend previous understandings of arithmetic to algebraic expressions.

Understand and apply properties of operations and the relationship between addition and subtraction.

Use the four operations with whole numbers to solve problems.

Work with radicals and integer exponents.

Represent and solve problems involving multiplication and division.

Analyze and solve linear equations and pairs of simultaneous linear equations.

Work with addition and subtraction equations.

Write expressions in equivalent forms to solve problems.

Gain familiarity with factors and multiples.

Add and subtract within 20.

Solve equations and inequalities in one variable.

Understand solving equations as a process of reasoning and explain the reasoning.

Use polynomial identities to solve problems.

Analyze patterns and relationships.

Interpret the structure of expressions.

Understand the relationship between zeros and factors of polynomials.

Understand the connections between proportional relationships, lines, and linear equations.

Multiply and divide within 100.

Use properties of operations to generate equivalent expressions.

Understand addition as putting together and adding to, and understand subtraction as taking apart and taking from.

Reason about and solve one-variable equations and inequalities.

Represent and solve problems involving addition and subtraction.
problem_activity: A system of linear equations is represented in the graph below.
[IMG]
a.   Write the two equations that represent this system.
b.   What is the solution to the system? Prove this algebraically.


correct_option_index: 17