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