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 - 4a = 7a + 8y - 2 for a in terms of y.
| \(\frac{5}{9}\)y + \(\frac{2}{9}\) | |
| 6y - 1 | |
| -1\(\frac{3}{10}\)y - \(\frac{3}{5}\) | |
| -\(\frac{2}{5}\)y + \(\frac{1}{5}\) |