HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
16-5^7:5^6+8 × 9
=16-5+72
=83
a)4x=3/2-1/3
4x=7/6
× =7/6:4
x =7/24
b)0,12-3x=1/4
3x =0,12-0,25
3x =-0,13
x =-0,13:3
x =-13/300
D nha
17.How much are the books? -How much -What
write a postcard to a friend telling him what a great time you're having on vacation (80 word)