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