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 6c + 3c = -7c + 2x - 7 for c in terms of x.
| 11x - 1 | |
| -1\(\frac{1}{5}\)x - \(\frac{4}{5}\) | |
| -7x - 6 | |
| -\(\frac{1}{13}\)x - \(\frac{7}{13}\) |