Question

x+2y=1 / 2x+3y=4 metodo de sustitución

Answer 1

X+2y=1

2x+3y=4

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X=1-2y

2(1-2y)+3y=4

2-4y+3y=4

-y=4-2

-y=2 <Multiplicamos por -1

Y=-2

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X=1-2y

X=1-(-2)

X=1+2

X=3