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 + 3c = -c + 3y - 9 for c in terms of y.
| -y + \(\frac{1}{7}\) | |
| -1\(\frac{5}{11}\)y - \(\frac{7}{11}\) | |
| 2\(\frac{1}{3}\)y - \(\frac{2}{3}\) | |
| y + 1\(\frac{1}{8}\) |