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 + a = -9a + 2y - 4 for a in terms of y.
| \(\frac{3}{4}\)y + 1\(\frac{3}{4}\) | |
| \(\frac{1}{18}\)y - \(\frac{2}{9}\) | |
| -\(\frac{1}{5}\)y - \(\frac{4}{5}\) | |
| \(\frac{1}{2}\)y + \(\frac{1}{10}\) |