Solve the following equation
100-x=57
Solve for x
100 - x = 57
Divide each side by 100
| 100x | |
| 100 |
| = |
| 57 |
| 100 |
Group constants
Group our constants 100 and 57.
subtract 100 from both sides
-x + 100 - 100 = 57 - 100
Cancel 100 on the left side:
-x = -43
Divide each side of the equation by -1
| -1x | |
| -1 |
| = |
| -43 |
| -1 |
x = 43
Final Answer
x = 43
