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 = 8 and x = 5, what is the value of -7a(a - x)?
| -72 | |
| -168 | |
| 80 | |
| 1224 |