Question

The sum of 5 consecutive even numbers is 100 what is the first number in this sequence

Answer 1

[16]+18+20+22+24=100

Answer 2

If x=first even number in sequence, then the next even number would be that number plus 2, plus 4, and so on.

x + (x+2) + (x+4) + (x+6) + (x+8) = 100

5x+20=100
5x=80
x=16