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cum se face exercitiul (155x a-860):100=10


Răspuns :

(155×a-860):100=10
155×a-860=10×100
155×a-860=1000
155×a=1000+860
155×a=1860
a=1860:155
a=12
(155 x a - 860) : 100 = 10
155 x a - 860 = 100 x 10
155 x a - 860 = 1000
155 x a =1000 + 860
155 x a = 1860
a = 1860 : 155
a = 12