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a fost răspuns

Aflati numarul necunoscut:
10×a-10×[332+10×(30+30÷10)]}=100

Răspuns :

10×a-10×[332+10×(30+30÷10)]=100
10a-10(332+10(30+3))=100
10a-10(332+10*33)=100
10a-10(332+330)=100
10a-10*662=100
10a-6620=100
10a=100+6620
10a=6720 
a=672
Zbdaria
10*a-10*[332+10*(30+30:10)]=100
10*a-10*[332+10*(30+3)]=100
10*a-10*(332+10*33)=100
10*a-10*(332+330)=100
10a-10*662=100
10a-6620=100
10a=100+6620
10a=6720
a=6720:10
a=672

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