HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
1 B
7x+7x+2+7x+3=27517x+7x+2+7x+3=2751
⇒7x+7x.49+7x.343=2751⇒7x+7x.49+7x.343=2751
⇒7x.(1+49+343)=2751⇒7x.(1+49+343)=2751
⇒7x.393=2751⇒7x.393=2751
⇒7x=7⇒7x=7
⇒x=1
Chúc bạn hok tốt
1.A computer / do / housework/ will/ my / me / help/ the.
=> A computer will help me do the housework.
2.Hoi An/ famous for/ old houses and buildings/is/ traditional crafts/ and .
=> Hoi An is famous for old houses and buildings and traditional crafts.
3.the/ Yesterday/ Temple of Literature/ visited/ we.
=> Yesterday, we visited the Temple of Literature.
4.by/ future dream house / will be/ the sea/ my
=>My future dream house will be by the sea
Chúc bạn hok tốt nhée