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