(1)2x+2x-3-2=4x-5/(2)3x+4x-6-5=7x-11/(3)2(3x+2x-3)+2x-3=6x+4x-6+2x-3=12x-9입니다^^ 좋은하루되세요!
당신은 어느 그룹입니까?