Question

помоите решить подробно уравнение : х+х+20+62=180

Answer 1

2х +82 = 180

2х = 180 - 82

х = 98 :2

х = 49

 

Answer 2

х + х + 20 +62 = 180

2х +20 + 62 = 180

2х +82 = 180

2х = 180 - 82 

2х =98 

х = 98 : 2 

х =49

проверка :

49 +49 +20 +62=180

                 180 =180

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