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 -2a - 6a = -7a - 8y + 9 for a in terms of y.
| \(\frac{10}{11}\)y + \(\frac{4}{11}\) | |
| \(\frac{2}{3}\)y + 2\(\frac{1}{3}\) | |
| -\(\frac{2}{5}\)y + 1\(\frac{4}{5}\) | |
| -\(\frac{1}{2}\)y + \(\frac{5}{16}\) |