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