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a+b=156 a:b=5 a-b=6
a=?
b=?


Răspuns :

a+b=156
a=156-b

a:b=5
a=5b

a-b=6
a=6-b

156-b=5b
156=5b+b
156=6b
b=156/6
b=26

a=5b=5*26=130

Raspuns b=26, a=130