Explicación paso a paso:
X+2y=2x-5,x-y=3:x=1,y=-2
-3x+2y-{y³-x}
simplificada:
y³+x-y
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Explicación paso a paso:
X+2y=2x-5,x-y=3:x=1,y=-2
Verified answer
-3x+2y-{y³-x}
simplificada:
y³+x-y