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 = 9 and x = 8, what is the value of -b(b - x)?
| -90 | |
| -9 | |
| -18 | |
| -140 |