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 all together. There are enough supplies to clean 126 windows how many office builders can be washed identify the equation that would be used to solve this problem algebraically

Answer 1

Let's say the number of office buildings is x and the number of windows in each office building is y.

According to the problem, the cleaner can clean 21 windows per office building. So, the total number of windows in all office buildings would be 21x.

Additionally, the cleaner can clean the windows of a school with 42 windows.

The total number of windows the cleaner can clean with the supplies is given as 126.

Therefore, the equation that represents this information is:
21x + 42 = 126