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 a - 8a = 7a - 5y - 8 for a in terms of y.
| y + \(\frac{1}{5}\) | |
| -1\(\frac{1}{4}\)y - \(\frac{5}{8}\) | |
| -\(\frac{1}{2}\)y + 1\(\frac{1}{3}\) | |
| -13y - 1 |