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a fost răspuns

Aflati numarul necunoscut din urmatoarele expresii matematice:
[(e:8+5609):2-111]:10=400

Răspuns :

[(e:8+5609):2-111]:10=400⇒(e:8+5609):2-111=4000⇒(e:8+5609):2=4111⇒e:8+5609=8222⇒e:8=2613⇒e=2613*8⇒e=20904
Ctinamaria31xxx
[(e:8+5609):2-111]:10=400
(e:8+5609):2-111=400*10
(e:8+5609):2-111=4000
(e:8+5609):2=4000+111
(e:8+5609):2=4111
e:8+5609=4111*2
e:8+5609=8222
e:8=8222-5609
e:8=2613
e=2613*8
e=20904

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