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 3a - 3a = 5a - 2y + 9 for a in terms of y.
| -\(\frac{1}{12}\)y - \(\frac{1}{4}\) | |
| y + 2\(\frac{1}{2}\) | |
| 6\(\frac{1}{2}\)y - 2 | |
| -\(\frac{1}{2}\)y - 4\(\frac{1}{2}\) |