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