Respuesta:
5x + 12y
Explicación paso a paso:
( 4x + 7y ) + ( x + 5y )
= 4x + 7y + x + 5y
= 4x + x + 7y + 5y
= 5x + 12y
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Respuesta:
5x + 12y
Explicación paso a paso:
( 4x + 7y ) + ( x + 5y )
= 4x + 7y + x + 5y
= 4x + x + 7y + 5y
= 5x + 12y