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a - b = 4b
a = 5b
Entonces:
a + b = 150
5b + b = 150
6b = 150
b = 25
a + b = 150
a + 25 = 150
a = 125
X-y=4X ====> -3x-y=0 =====-
____________-2×=150 x=-75 y=150+75=225
es la b 75 y 225
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