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 9a + 2a = -3a - 5y + 7 for a in terms of y.
| y - 3 | |
| \(\frac{1}{4}\)y - \(\frac{1}{6}\) | |
| -\(\frac{7}{12}\)y + \(\frac{7}{12}\) | |
| 1\(\frac{1}{3}\)y - \(\frac{1}{3}\) |