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 -c - 2c = 2c - 2y + 9 for c in terms of y.
| 1\(\frac{1}{12}\)y + \(\frac{1}{2}\) | |
| \(\frac{2}{7}\)y - \(\frac{2}{7}\) | |
| y - 3 | |
| y - 1\(\frac{2}{7}\) |