Question

The sun of three consecutive even numbers is 24.find the numbers

Answer 1

if they were all the same, they'd be 8. So, leave the 8 and move the others away in each direction.

7+8+9 = 24

Or, if you insist on an algebraic solution, let x be the middle number. Then
x-1 + x + x+1 = 24
Now solve for x (I bet it'll be x=8)

Answer 2

Oops. I missed the "even" part. So, move away by 2, not 1.

6+8+10 = 24