make it end/simplify to x=x or contatnt=same constant a(b+c)=ab+ac distribtiv epropeoty simplify and keep the question mark 2x-2+6x=4?-4+2 add like terms 8x-2=4?-2 add 2 to both sides 8x=4? divide both sides by 4 2x=? the question mark has to be 2x so 2(x-1)=4(2x-1)+2 has infinite solutions