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.)
Solve -3b - 5b = -2b - 9x - 9 for b in terms of x.
| x - 4\(\frac{1}{2}\) | |
| 4x + 9 | |
| x + 4 | |
| 4x - 3\(\frac{1}{2}\) |