Question 51676
X+(X+1)+(X+2)=20 OR 3X-3=20 3X=20-3 OR 3X=17 OR X=17/3 X=5 2/3 THUS THE OTHER TWO NUMBERS ARE 6 2/3 & 7/2/3. 

PROOF 5 2/3+6 2/3+7 2/3=20 OR 18 6/3 OR OR 20 

THESE ARE NOT INTERGERS!