Question

1) tìm X 

X- 3/4 = 1/2 

X:1/4=8

X+1/6=5/12

4/5-x =3/10 

2/5 : x =1/3

2/7 * x = 2/3

Answer 1

cau1 x= 1/2 + 3/4 

x= 5 / 4

cau2 x = 8 x 1/4

x= 2

cau 3 x= 5/12 - 1/6

x = 1/4

cau 4 x = 4/5 - 1/10

x = 7/10

cau5 x= 2/5 : 1/3

x= 6/5

cau6 x =2/3 : 2/7

x = 7/3

Answer 2

x - 3/4 = 1/2 

x = 1/2 + 3/4 

x = 0,875

x : 1/4 = 8 

x = 8 x 1/4

x = 2 

x + 1/6 = 5/12

x = 5/12 - 1/6 

x = 3/12

4/5 - x = 3/10 

x = 4/5 - 3/10 

x = 5/10 = 1/2

2/5 :x =  1/3

x = 2/5 : 3 

x = 2/15

2/7 * x = 2/3

x = 2/3 : 2/7

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