Question

Решите уравнение:

x+(x+17)=53

Answer 1

2x+17=53

2x=36

x=18

вот и все

Answer 2

х + ( х +17 ) = 53

2х + 17 = 53

2х =53 - 17 

2х = 36

х =36 :2 

х =18

проверка :

18 + ( 18 + 17 ) = 53

 

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