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 7a - 7a = -9a - 9y - 4 for a in terms of y.
| \(\frac{5}{17}\)y + \(\frac{9}{17}\) | |
| -\(\frac{1}{8}\)y - \(\frac{1}{4}\) | |
| \(\frac{5}{6}\)y + 1\(\frac{1}{3}\) | |
| -\(\frac{3}{7}\)y - \(\frac{3}{7}\) |