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