Comment Re:It should be: 4+3+2=x+2 (Solve for x) (Score 1) 1268
heh.. took me a bit to notice where this is wrong..
in step 5 you cancel by dividing both sides of the equation by (a-b). However in step 1 you have established that a=b, so you are in fact dividing both sides by 0. Which is an illegal operation.
