phamkien kienpham's Profile

there are many means of transport in Vietnam but the most common is the motorbike. It is common because of many reasons. First, Vietnamese people have medium economic class so it is congruous to Vietnamese people. Second, it fast and convenient, Vietnam often has traffic jams and motorbike is small enough to wriggle through.And the last reason, it is diverse , it has many colors, shapes, kinds,...

4x-(x+1/2)=2x+9/2

4x-2x-(x+1/2)=9/2

2x-(x+1/2)=9/2

2x-x-1/2=9/2
x=9/2+1/2

x=4

chuc ban hoc tot

=1+4/23+5/21-4/23=26/21

=1+(4/23-4/23)+(5/21+26/21)

=1+0+31/21

=52/21

-2+1/5.x=1/3x-5/4

-1/3x+1/5x=2-5/4

(-1/3+1/5).x=3/4

-2/15.x=3/4

x=3/4:(-2/15)

x=45/-8