b). (6xa+8):2+7=56
Urgent​


Răspuns :

(6×a+8):2+7=56

(6×a+8):2=56-7

6×a+8=49×2

6×a+8=98

6×a=98-8

6×a=90

a=90:6

a=15

Răspuns:

(6*a+8):2+7=56

(6*a+8):2=56-7

(6*a+8):2=49

6*a+8=49*2

6*a+8=98

6*a=98-8

6*a=90

a=90/6

a=15

Succes!