Question

Find 3 consecutive integer such that the sum of the first and the third is 40
please explain how you got ur answer

Answer 1

Choose an integer n to be the smallest of your 3 consecutive integers. Then, your other two integers are n+1 and n+2. You want the sum of the first and third to be 40. So, n+2+n=40
2n+2=40
2n=38
n=19

Therefore, your 3 consecutive integers are 19,20, and 21.