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 = 3 and x = -2, what is the value of 7c(c - x)?
| 144 | |
| 210 | |
| 28 | |
| 105 |