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 5a - a = -9a - 4x - 1 for a in terms of x.
| -\(\frac{5}{7}\)x - \(\frac{4}{7}\) | |
| -1\(\frac{2}{13}\)x + \(\frac{3}{13}\) | |
| 1\(\frac{1}{2}\)x - 1 | |
| -\(\frac{3}{14}\)x - \(\frac{1}{14}\) |