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 - 7a = 9a + 4y + 2 for a in terms of y.
| -\(\frac{11}{18}\)y - \(\frac{1}{9}\) | |
| 3y + 3 | |
| -1\(\frac{6}{7}\)y - 1\(\frac{1}{7}\) | |
| -\(\frac{1}{2}\)y - \(\frac{4}{5}\) |