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 6a + a = -8a - 3y + 9 for a in terms of y.
| -\(\frac{1}{15}\)y - \(\frac{1}{15}\) | |
| -1\(\frac{1}{3}\)y + 2\(\frac{1}{3}\) | |
| -\(\frac{2}{7}\)y + \(\frac{6}{7}\) | |
| -\(\frac{2}{7}\)y + \(\frac{9}{14}\) |