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 = 6 and x = -1, what is the value of 5a(a - x)?
| -420 | |
| 216 | |
| 8 | |
| 210 |