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