step-by-step explanation:
1/2(2*4)=6 $$- agahajakanajak
1st integer x
2nd integer x+1
3rd integer x+2
4th integer x+3
x+x+1 +x+2+x+3 =74
combine like terms
4x+6 = 74
subtract 6 from each side
4x = 68
x = 17
the integers are 17,18,19,20