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 = -9a - 5x - 2 for a in terms of x.
| \(\frac{4}{5}\)x - \(\frac{3}{5}\) | |
| -\(\frac{1}{10}\)x - \(\frac{1}{5}\) | |
| -\(\frac{15}{16}\)x + \(\frac{3}{8}\) | |
| -\(\frac{2}{7}\)x + \(\frac{1}{7}\) |