Respuesta :

xKelvin

Answer:

D

Step-by-step explanation:

We have the expression:

[tex](-2x+8.1y)-(-9x+5.3y)[/tex]

First, let's distribute the negative on the right. This gives us:

[tex]=(-2x+8.1y)+(9x-5.3y)[/tex]

Now, let's combine like terms:

[tex]=(-2x+9x)+(8.1y-5.3y)[/tex]

Add:

[tex]=(7x)+(8.1y-5.3y)[/tex]

Subtract:

[tex]=(7x)+(2.8y)[/tex]

Simplify:

[tex]=7x+2.8y[/tex]

So, our answer is D.

And we're done!

keziakh004

Answer:

d.  7x + 2.8y

Step-by-step explanation:

You have to combine like factors to solve.  Distribute before solving.

(-2x + 8.1y) - (-9x + 5.3y)

-2x + 8.1y + 9x - 5.3y

7x + 8.1y - 5.3y

7x + 2.8y

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