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 = 7 and x = 2, what is the value of 5b(b - x)?
| 81 | |
| -40 | |
| 175 | |
| -42 |