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 10b + 2b = 9b + 4x + 8 for b in terms of x.
| 2x + 8 | |
| x - 2\(\frac{1}{2}\) | |
| 1\(\frac{5}{11}\)x + \(\frac{5}{11}\) | |
| \(\frac{9}{13}\)x - \(\frac{6}{13}\) |