=>x:\(\dfrac{1}{5}\)-\(\dfrac{3}{4}\)=\(\dfrac{1}{2}\)

=>x=21/20

have....................built

2.........watches...........praction.................find

3,attend.......

lam linh tinh dey

`<=> x\(^2\) + x + x\(^2\) +2x -x-2 =0

2x\(^2\)+2x-2

14/3:1/2=28/3

can you see him?He (walk)_is walking____down the street

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are you doing

có now

=> 390-x+7=16:4

=>390-x+7=4

=>390-x+7-4=0

=>(390+7-4)-x=0

=>393-x=0

=>x=-393