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5x +10y=50 Metodo de igualacionx-y=7 x:_____y:_____

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Answer:

(x,y)=(8 , 1)

5x +10y=50

x-y=7

Despejamos x en ambas ecuaciones

5x=50-10y

x=7+y

x=10-2y

x=7+y

Igualamos

10-2y=7+y

-2y-y=7-10

-3y=-3

y=-3/-3

y=1

Calculamos la otra incógnita

x-y=7

x-(1)=7

x=7+1

x=8

y= 1

x=8

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