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 9a + 2a = -4a - 5y - 5 for a in terms of y.
| \(\frac{1}{3}\)y - \(\frac{1}{3}\) | |
| \(\frac{7}{9}\)y + \(\frac{1}{3}\) | |
| -\(\frac{9}{10}\)y - \(\frac{2}{5}\) | |
| -\(\frac{7}{13}\)y - \(\frac{5}{13}\) |