Răspuns :
mere ................... nuci.................5 kg / x 2
2 x mere ................3 x nuci...............13 kg
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2 x mere..................2 x nuci............10 kg
2 x mere .................3 x nuci..............13 kg
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3 x nuci - 2 x nuci = 13 kg - 10 kg
nuci = 3 kg
mere + nuci = 5 kg
mere + 3 kg + 5 kg
mere = 5kg - 3 kg= 2 kg
2 x mere ................3 x nuci...............13 kg
...................................................................
2 x mere..................2 x nuci............10 kg
2 x mere .................3 x nuci..............13 kg
.....................................................................
3 x nuci - 2 x nuci = 13 kg - 10 kg
nuci = 3 kg
mere + nuci = 5 kg
mere + 3 kg + 5 kg
mere = 5kg - 3 kg= 2 kg