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 = 7a + 8y - 7 for a in terms of y.
| y - \(\frac{7}{11}\) | |
| -\(\frac{5}{8}\)y + \(\frac{7}{16}\) | |
| -\(\frac{3}{5}\)y - 1\(\frac{2}{5}\) | |
| -\(\frac{5}{6}\)y + \(\frac{1}{4}\) |