3x + 6 = 2x + 4
bring the 2x over the " equals" sign anything you do this to always changes "signs"
-2x ( negative because it was positive before ) so now it's
-2x +3x +6 = 4
bring the 6 over
-2x + 3x = -6 + 4
then just work it out from here
answer would be
x (or 1x) = -2