A window cleaner has enough supplies to clean 21 windows per office building on a certain number of buildings. They can also clean the windows of a school with 42 windows altogether. There are enough supplies to clean 126 windows how many buildings can be washed identify the equation that would be used to solve this problem AL GEBRAICALLY would the answer be 42X -21 equals 126 or 21X +42 equals 126 or 42X +21 equals 126 or 21X -42 equals 126
The equation that would be used to solve this problem algebraically is 21X + 42 = 126.
The answer can be found by solving this equation for X (the number of buildings).