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 = -6a - 6y + 4 for a in terms of y.
| -1\(\frac{1}{2}\)y - 3\(\frac{1}{2}\) | |
| \(\frac{1}{13}\)y + \(\frac{4}{13}\) | |
| -\(\frac{1}{12}\)y - \(\frac{5}{12}\) | |
| \(\frac{2}{13}\)y - \(\frac{3}{13}\) |