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 3a - 9a = -4a + 3y - 8 for a in terms of y.
| -\(\frac{3}{10}\)y + \(\frac{4}{5}\) | |
| 1\(\frac{5}{7}\)y - 1\(\frac{1}{7}\) | |
| \(\frac{5}{12}\)y - \(\frac{1}{6}\) | |
| 1\(\frac{1}{2}\)y + 2\(\frac{1}{2}\) |