Question

 Bài 8: Tìm số nguyên x, biết: 2016 : [25 – (3x + 2)] = 32 .7

thanks

 

Answer 1

Ta có: \(2016:\left[25-\left(3x+2\right)\right]=32\cdot7\)

\(\Leftrightarrow25-\left(3x+2\right)=9\)

\(\Leftrightarrow3x+2=16\)

\(\Leftrightarrow3x=14\)

hay \(x=\dfrac{14}{3}\)

Answer 2

2016 : [25 - (3x+2)]=32.7

25 - (3x+2)= 2016 : 224

25 - (3x+2)= 9

3x+2 = 16

3x=14

x=\(\dfrac{14}{3}\)

Answer 3

2016 : [25 - (3x+2)]=32.7

25 - (3x+2)= 2016 : 224

25 - (3x+2)= 9

3x+2 = 16

3x=14

x=14/3

Answer 4

 

 

25−(3x+2)=2016:224

25−(3x+2)=9

3x+2=16

3x=16-2

3x=14

x=14:3⇔14/3

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