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 z = 7, what is the value of 3b(b - z)?
| 294 | |
| -325 | |
| -2 | |
| -20 |