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