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Apostollaura20
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determinati suma a+b+c daca a+b=1331  b+c=1624  a+c=1385

Răspuns :

Marian2014
a+b=1331
b+c=1624
a+c=1385
2a+2b+2c=4340
a+b+c=4340:2
a+b+c=2170
a=2170-1624
a=546
b=2170-1385
b=295
c=2170-1331
c=739

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