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A+b+c=878
a=251
b=a-32
c=?
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Afla al treilea termen.



Răspuns :

a=251
b=a-32=251-32=219
c=878-251-219=408
251+219+408=878
b=251-32=219
c=878-(a+b)=878-470=408
V=251+219+408=878