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 5c + 7c = 4c - 2x - 8 for c in terms of x.
| -1\(\frac{1}{15}\)x - \(\frac{8}{15}\) | |
| \(\frac{10}{13}\)x - \(\frac{1}{13}\) | |
| -1\(\frac{2}{9}\)x + \(\frac{1}{3}\) | |
| -9x - 8 |