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 - 4a = 3a + 8y + 4 for a in terms of y.
| \(\frac{1}{5}\)y - \(\frac{3}{10}\) | |
| -\(\frac{1}{13}\)y + \(\frac{5}{13}\) | |
| -2\(\frac{2}{5}\)y - \(\frac{4}{5}\) | |
| -7y - 4 |