Ответ:
(x+2)+(x-2)+(x/2)=40
2x+x/2=40
5x/2=40
5x=80
x=16
1)16+2=18
2)16-2=14
3)16/2=8
18+14+8=40
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Ответ:
(x+2)+(x-2)+(x/2)=40
2x+x/2=40
5x/2=40
5x=80
x=16
1)16+2=18
2)16-2=14
3)16/2=8
18+14+8=40