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 b = 7 and x = -2, what is the value of -9b(b - x)?
| -567 | |
| 48 | |
| 198 | |
| 945 |