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EnderGamer3000
a fost răspuns

daca a , b ,c sunt nr naturale , astfel inact:
a+b=55 si b+c=45 , sa se calculeze:

2a+4b+2c=?
a+3b+2c=?
DAU CORONITA !!!
VA ROG URGENT!!

Răspuns :

Ahzee
a=55-b si c=45-b
2a+4b+2c=2(55-b)+4b+2(45-b)=110-2b+4b+90-2b=110-90=20
a+3b+2c=55-b+3b+2(45-b)=55+2b+90-2b=55+90=145

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