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 -3c + 2c = -4c - x + 9 for c in terms of x.
| -3x + 9 | |
| 6x + 3 | |
| \(\frac{2}{3}\)x - \(\frac{1}{3}\) | |
| \(\frac{1}{5}\)x - \(\frac{2}{5}\) |