Respuesta:
[tex]x + 3xy +19y[/tex]
Explicación paso a paso:
[tex]5x + 4xy + 7y - xy +12y - 4x[/tex]
[tex]5x -4x+ 4xy-xy + 7y+12y[/tex]
[tex]x+3xy+19y[/tex]
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Respuesta:
[tex]x + 3xy +19y[/tex]
Explicación paso a paso:
[tex]5x + 4xy + 7y - xy +12y - 4x[/tex]
[tex]5x -4x+ 4xy-xy + 7y+12y[/tex]
[tex]x+3xy+19y[/tex]