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