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 = 6 and x = -1, what is the value of 7b(b - x)?
| -448 | |
| 36 | |
| 420 | |
| 294 |