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 - c = -7c - 9x + 4 for c in terms of x.
| -x + 1\(\frac{2}{3}\) | |
| -x + \(\frac{1}{2}\) | |
| -\(\frac{1}{2}\)x - \(\frac{2}{3}\) | |
| \(\frac{8}{9}\)x + \(\frac{7}{9}\) |