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 -4a - 8a = 9a + 9y - 8 for a in terms of y.
| \(\frac{9}{16}\)y - \(\frac{5}{16}\) | |
| -\(\frac{1}{11}\)y - \(\frac{2}{11}\) | |
| 1\(\frac{1}{3}\)y + \(\frac{2}{9}\) | |
| -1\(\frac{4}{13}\)y + \(\frac{8}{13}\) |