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 - 3a = -4a - x + 4 for a in terms of x.
| \(\frac{2}{13}\)x + \(\frac{4}{13}\) | |
| x - 1 | |
| \(\frac{1}{4}\)x + \(\frac{3}{8}\) | |
| 2\(\frac{5}{6}\)x + \(\frac{1}{6}\) |