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a+b=689 c-b=113 208+c=496va rog ajutati

Răspuns :

a+b=689
c-b=113
208+c=496,c=496-208,c=288
c-b=113
288-b=113
288-113=b,b=175
a+b=689
a=175=689,a=689-175,a=514
KimLbug
208+c=496 ⇒ c=496-208=288
c-b=113 ⇔ 288-b=113 ⇒ b=288-113=175
a+b=689 ⇔ a+175=689 ⇒ a=689-175=514

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