Question

Giup minh voi : 2/3-1/3(x-3/2)-1/2(2x+1)=5

Answer 1

2/3-1/3(x-3/2)-1/2(2x+1)=5

2/3-1/3x-1/3.(-3/2)-1/2.2x-1/2.1=5

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

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

-4/3x+2/3=5

-4/3x=5-2/3

-4/3x=13/3

=>x=13/3:(-4/3)

x=-13/4

Answer 2

+ trieu dang: Pạn làm nhanh quá ó

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