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