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 -7b - 5b = -5b - 2x - 4 for b in terms of x.
| x - 2 | |
| -\(\frac{4}{5}\)x - \(\frac{2}{5}\) | |
| 1\(\frac{1}{15}\)x + \(\frac{8}{15}\) | |
| -1\(\frac{1}{2}\)x + 2 |