Răspuns :
2a + 2b = 2 · 24 = 48
si 3b + 3c = 3·5 = 15
2a + 2b = 48
3b + 3c = 15
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adunate 2a + 5c + 3c = 48 + 15 = 63
si 3b + 3c = 3·5 = 15
2a + 2b = 48
3b + 3c = 15
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adunate 2a + 5c + 3c = 48 + 15 = 63