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 = 3 and x = -6, what is the value of -7a(a - x)?
| -21 | |
| 96 | |
| -189 | |
| 224 |