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 3a - 9a = 8a + x + 1 for a in terms of x.
| \(\frac{9}{14}\)x - \(\frac{4}{7}\) | |
| \(\frac{3}{10}\)x - \(\frac{2}{5}\) | |
| 2\(\frac{1}{2}\)x + \(\frac{3}{4}\) | |
| -2x - \(\frac{1}{5}\) |