CPM Homework Help : CCAA8 Problem 8-43

Find three consecutive numbers whose sum is $138$ by writing and solving an equation.

Hint 1:

If $x$ is the first integer and $x+1$ is the second integer, what would be the third integer?

Hint 2:

The equation for this problem is the following: $x+(x+1)+(x+2)=138$ .