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 - a = 9a - 2y - 8 for a in terms of y.
| \(\frac{11}{12}\)y - \(\frac{2}{3}\) | |
| y - \(\frac{1}{2}\) | |
| y + 9 | |
| y + 8 |