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ToyChica123
a fost răspuns

Determinati valoarea lui a din:
[48+50x100:(28:a+3x2)-14]x[(50-4x5)+(143-4x6)]=42.316

Răspuns :

[48+5000:(28:a+6)-14]x[(50-20)+(143-24)]=42316
[48+5000:(28:a+6)-14]x(30+119)=42316
[48+5000:(28:a+6)-14]x149=42316
[(48+5000:(28:a+6)-14]=42316:149=284
48+5000:(28:a+6)=284+14=298
5000:(28:a+6)=298-48=250
28:a+6=5000:250=20
28:a=20-6=14
a=28:14
a=2

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