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 - 7a = -9a + 2x - 6 for a in terms of x.
| x - \(\frac{9}{13}\) | |
| \(\frac{9}{10}\)x - \(\frac{3}{5}\) | |
| -\(\frac{1}{2}\)x - 1\(\frac{1}{2}\) | |
| -\(\frac{3}{13}\)x + \(\frac{3}{13}\) |