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 a = 9 and y = 8, what is the value of -8a(a - y)?
| -54 | |
| -28 | |
| -72 | |
| 28 |