1, x+3/15=1/32, x-12/4=1/23, 4/5+x=2/34, 3/4-x=1/35, -5/6 - x= 2/36, 1/2x+1/2=5/27, -2/3 - 1/3(2x-5) = 2/38, (3x-1){-1/2x+5} = 09, 3 1/3 + 5/6x =3 1/210, 3/4x+1/5 = 1/6Mk đg cần gấp lắm, mong mn giai dùm mk nha !! :)
Đăng ký qua Facebook hoặc Google: