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 = 8 and z = 1, what is the value of 3b(b - z)?
| 168 | |
| -144 | |
| -28 | |
| -192 |