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 8c - 4c = 7c - 3x - 7 for c in terms of x.
| x - 7 | |
| x - \(\frac{2}{5}\) | |
| x + 1 | |
| x + \(\frac{8}{13}\) |