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 4a - 5a = -5a + 2y + 2 for a in terms of y.
| -1\(\frac{1}{2}\)y + \(\frac{7}{8}\) | |
| \(\frac{7}{9}\)y + \(\frac{2}{9}\) | |
| -\(\frac{1}{12}\)y + \(\frac{5}{12}\) | |
| -7y - 4 |