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 = 9 and x = -5, what is the value of -3a(a - x)?
| -5 | |
| -378 | |
| 9 | |
| 49 |