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