When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)
If a = 5 and y = -7, what is the value of 2a(a - y)?
| 120 | |
| -120 | |
| 112 | |
| 117 |