Let's assume the number of office buildings is x.
The number of windows in the office buildings = 21x
The total number of windows = number of windows in the office buildings + number of windows in the school = 21x + 42
According to the problem, the total number of windows is 126.
Therefore, the equation that would be used to solve this problem algebraically is 21x + 42 = 126.
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 office buildings can be washed? Identify the equation that would be used to solve this problem algebraically.(1 point)
1 answer