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