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Stiind ca a+b=24 si b+c=32,calculeaza 2a+3b+c.

Răspuns :

a+b=24
b+c=32
2a+3b+c=?
2a+3b+c=a+b+a+b+b+c
2a+3b+c=2a+3b+c
2a+3b+c=24+24+32
2a+3b+c=80

Raspuns: 80
~Sper ca te-am ajutat!!!~

a+b=24  /*2      ⇒ 2a+2b=48

b+c=32                                       

{2a+2b=48

{b+c=32        (+)

2a+3b+c=48+32=80

Raspuns: 80