The variable in this case can be thought of as a storage location in the computer. You must have a single variable name on the left-hand side since assignment is to a variable or storage location. Subtraction - 3. All multiplication and division is performed next, in order from left to right. Addition and subtraction is performed last, in order from left to right.
Parentheses can modify the order of evaluation.
Expressions within parentheses will be evaluated first, using the priority rules. If parentheses are nested, the inner expression is evaluated first. Type conversion occurs when you mix variables or constants of different types together in an expression. Beware of integer division. Dividing one integer by another causes truncation of any decimal part.