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a+b = 10
10a+b+36 = 10b+a
a+b = 10
10a-a-10b+b = -36
a+b = 10
9a-9b = -36 /:9
a+b = 10
a-b = -4
________
2a = 6 /:2
a = 3
3-b = -4
-b = -4-3
-b = -7 /*(-1)
b = 7
Ta liczba to 37