chia động từ ở dạng thích hợp

1 They ( not/stay) ..................................... at home yếtrday

2 He (always/play)..................................... soccer in the afternoon

3 I promise I(not/play).................................... video game

4 We(go)......................... comping next sunday

5 To night I (stay).............................at home and (watch).........................TV

6 Look at those clouds. It (rain)......................

Tìm x biết :

a) -2×(x-1/3)-5× (x+1/3)=1/2×x

b) -(1/2×x-3/4)-(-x+1)=-3/2

Cảm ơn nhiều nha!