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