Question

x-1=2(y+6)
x+6=3(1-2y)

Answer 1

Sustitución:
2(y+6)+1 = 3(1-2y)-6
2y+13 = -3-6y
2y+6y = -13-3
8y = -16
y = -16/8
y = -2

X = 2(-2+6)+1
X = 2(4)+1
X = 9

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