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 = 2a - 3y - 4 for a in terms of y.
| \(\frac{1}{2}\)y + \(\frac{2}{3}\) | |
| 2\(\frac{2}{5}\)y + \(\frac{4}{5}\) | |
| \(\frac{2}{9}\)y + \(\frac{1}{9}\) | |
| -\(\frac{7}{11}\)y - \(\frac{8}{11}\) |