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 = -1 and y = -1, what is the value of -7b(b - y)?
| 30 | |
| 0 | |
| 48 | |
| 84 |