Peter has 49 nuts. Walnuts have 3 more than hazelnuts and hazelnut 2 over almonds. Determine the number of wallnuts, almonds and hazelnuts.

Correct result:

a =  19
b =  14
c =  16


a = 3 + c
c = 2 + b

a+b+c = 49
a-c = 3
b-c = -2

a = 19
b = 14
c = 16

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