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 2c - 8c = c + x - 8 for c in terms of x.
| 9x - 8 | |
| 5\(\frac{1}{2}\)x - 4\(\frac{1}{2}\) | |
| -\(\frac{7}{17}\)x + \(\frac{4}{17}\) | |
| -4\(\frac{2}{3}\)x - 2 |