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 + 7a = 6a - 6y - 2 for a in terms of y.
| -7y - 6 | |
| 1\(\frac{2}{11}\)y + \(\frac{2}{11}\) | |
| -\(\frac{2}{5}\)y - \(\frac{8}{15}\) | |
| 1\(\frac{4}{9}\)y + \(\frac{4}{9}\) |