Question

3 consecutive numbers have a sum of 120. Write an equation to

determine what numbers these are, and find them.

Answer 1

Let x equal the first number then (x+1) equals the next number and (x+2) is the last

120 = x + (x+1) + (x+2)
120 = 3x + 3
117 = 3x
x = 39

The numbers are 39, 40, and 41