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 5c + 6c = -c + 3x - 9 for c in terms of x.
| -\(\frac{2}{3}\)x - 2 | |
| -\(\frac{1}{2}\)x - 1\(\frac{1}{2}\) | |
| -\(\frac{1}{3}\)x + \(\frac{5}{12}\) | |
| \(\frac{1}{2}\)x + \(\frac{1}{2}\) |