La respuesta es -1
-x-y= -28
x=28-28
-x= - 28 + y
x = 0
x = 28 - y
28-y-y=28
-0-28= - 28
-2y= - 28-28
-y= - 28
y=28
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Verified answer
La respuesta es -1
-x-y= -28
x=28-28
-x= - 28 + y
x = 0
x = 28 - y
28-y-y=28
-0-28= - 28
-0-28= - 28
-2y= - 28-28
-y= - 28
y=28