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 + 4c = -6c - 2y - 7 for c in terms of y.
| y + \(\frac{2}{13}\) | |
| -\(\frac{7}{8}\)y - \(\frac{7}{8}\) | |
| 6y - 3 | |
| -\(\frac{2}{5}\)y - \(\frac{7}{15}\) |