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 - 8a = -5a + 4y + 3 for a in terms of y.
| 5y + 4 | |
| -\(\frac{5}{9}\)y + \(\frac{2}{9}\) | |
| \(\frac{6}{7}\)y + \(\frac{3}{14}\) | |
| -y + \(\frac{4}{13}\) |