Question 398822
Let x, x+2, x+4 be the 3 integers.
x+x+2=x+4+7
2x+2=x+11
2x-x=11-2
x=9 ans. for the first integer.
9+2=11 ans. for the middle integer.
9+4=13 ans. for the largest integer.
Proof:
9+11=13+7
20=20