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 = -3a - 6y - 5 for a in terms of y.
| -2\(\frac{1}{2}\)y - \(\frac{5}{6}\) | |
| -\(\frac{1}{5}\)y + \(\frac{4}{5}\) | |
| -\(\frac{5}{14}\)y - \(\frac{4}{7}\) | |
| y + \(\frac{4}{9}\) |