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 c = -6 and x = 6, what is the value of 7c(c - x)?
| -55 | |
| 60 | |
| -400 | |
| 504 |