the sum of two consecutive even integers is 2 more than twice the smaller integer
first even number ---- x
next consecutive even number --- x+2
x + x+2 = 2x+2
2x+2 = 2x+2
which is true for all x's
e.g. let x = 234, then the next is 236
sum = 234+236 = 470
2 more than twice the smaller = 2*234 + 2 = 470