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 + 8c = 3c + 5y + 7 for c in terms of y.
| 3y + 3 | |
| \(\frac{7}{9}\)y - \(\frac{8}{9}\) | |
| -2\(\frac{1}{4}\)y - 1\(\frac{1}{2}\) | |
| -\(\frac{1}{2}\)y + 1\(\frac{1}{6}\) |