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 - 8b = 9b - 5x - 6 for b in terms of x.
| x + 9 | |
| -\(\frac{5}{7}\)x - \(\frac{5}{7}\) | |
| -\(\frac{3}{16}\)x + \(\frac{3}{8}\) | |
| 3\(\frac{1}{2}\)x - \(\frac{3}{4}\) |