Respuesta:
2x + 4y = 10
X + 3y = 7 l
X= 7 - 3y
2(7-3y)+ 4y = 10
14-6y+ 4y = 10
14 - 2y = 10
-2y = 10 - 14
-2y = - 4. /*-2
Y = 2
Reemplazar y=2 en la ecuación X= 7 - 3y
X= 7 - 3*2
X= 7 - 6
X= 1
Solución (1,2)
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Respuesta:
2x + 4y = 10
X + 3y = 7 l
X= 7 - 3y
2x + 4y = 10
2(7-3y)+ 4y = 10
14-6y+ 4y = 10
14 - 2y = 10
-2y = 10 - 14
-2y = - 4. /*-2
Y = 2
Reemplazar y=2 en la ecuación X= 7 - 3y
X= 7 - 3y
X= 7 - 3*2
X= 7 - 6
X= 1
Solución (1,2)