Respuesta :

We have the expression:

[tex](x+4)+(2x-7)[/tex]

Adding the parts with x and the parts without x we have:

[tex](x+2x)+(4-7)_{}[/tex]

Wich gives us:

[tex]3x\text{ - 3}[/tex]

Wich is a polinomial of first degree.

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