Question

5.(x + 2) - 32 : 8 = 21

Answer 1

5.(x+2)-32:8=21

<=>5.(x+2)-4=21

<=>5.(x+2)=21+4

<=>5.(x+2)=25

<=>x+2=25:5

<=>x+2=5

<=>x=5-2

<=>x=3

Vậy ...

Answer 2

=>5(x+2)=25

=>x+2=5

=>x=3