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 = -5 and x = -9, what is the value of -9b(b - x)?
| 90 | |
| 12 | |
| -280 | |
| 180 |