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 - 8a = 9a + 6y - 8 for a in terms of y.
| 2\(\frac{1}{7}\)y - \(\frac{4}{7}\) | |
| -\(\frac{7}{9}\)y + \(\frac{4}{9}\) | |
| -\(\frac{1}{5}\)y - \(\frac{1}{5}\) | |
| 1\(\frac{1}{9}\)y + \(\frac{1}{3}\) |