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