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
