Răspuns :
a + b + c ____
------------------ = 12 => a + b + c = 3 * 12 = | 36 |
3
a + b ___
----------- = 10 => a + b = 2 * 10 = | 20 |
2
20 * c = 36 =>
c = 36 - 20 =>
c = 16
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