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 - 5a = -7a - 3y + 2 for a in terms of y.
| 13y + 8 | |
| \(\frac{3}{5}\)y - 1\(\frac{2}{5}\) | |
| \(\frac{1}{8}\)y + \(\frac{1}{8}\) | |
| -6y - 9 |