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 + 8a = -a + 4y - 1 for a in terms of y.
| 4y + 6 | |
| \(\frac{4}{7}\)y + \(\frac{1}{7}\) | |
| -\(\frac{4}{9}\)y - \(\frac{1}{3}\) | |
| -5y - 4 |