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A - B = 5
Sistema de ecuaciones
2a = 194
a = 97
b = 38
a + b = 135
a - b = 59
se eliminan las "b".
2a= 194
a= 97
Resolución b:
2m + 12n = -22
8m - 12n = 32
Se eliminan "12n-12n"
10m = 10
m = 1