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 = 7, what is the value of 2b(b - y)?
| -21 | |
| 16 | |
| 72 | |
| 675 |