window cleaner has enough supplies to clean 21 windows per office building on a certain number of ildings. They can also clean the windows of a school with 42 windows. Altogether, there are enough pplies to clean 126 windows. How many office buildings can be washed? Identify the equation that suld be used to solve this problem algebraically. (1 point)

Question

responses

21x + 42 = 126

42x - 21 = 126

21x - 42 = 126

42x + 21 = 126

Answer 1

The correct equation that should be used to solve this problem algebraically is:

21x + 42 = 126