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 9a - a = 3a + 2x + 8 for a in terms of x.
| \(\frac{1}{2}\)x + 1\(\frac{1}{3}\) | |
| \(\frac{5}{14}\)x + \(\frac{3}{14}\) | |
| x - 1\(\frac{2}{3}\) | |
| -\(\frac{6}{13}\)x - \(\frac{2}{13}\) |