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