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 z = -4, what is the value of -3b(b - z)?
| -135 | |
| -84 | |
| -648 | |
| -12 |