Respuesta:
1)x= 8-2y. 2) x= 7-y/2
x=x
2(8-2y)= 7-y
16-4y= 7-y
16-7= 4y-y
9= 3y
9/3= y
3= y
x= 8-2.3
x= 2
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Respuesta:
1)x= 8-2y. 2) x= 7-y/2
x=x
2(8-2y)= 7-y
16-4y= 7-y
16-7= 4y-y
9= 3y
9/3= y
3= y
x= 8-2.3
x= 2