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 = -7 and y = 8, what is the value of -a(a - y)?
| 54 | |
| 12 | |
| -15 | |
| -105 |