Respuesta :

gabrielle55

Answer:

-20+20

Step-by-step explanation:

8r-28r+20

-20r+20

Answer:

−20r+20

Step-by-step explanation:

Let's simplify step-by-step.

8r−4(7r-5)

Distribute:

=8r+(−4)(7r)+(−4)(−5).

=8r+−28r+20

Combine Like Terms:

=

8r+−28r+20

=(8r+−28r)+(20)

=−20r+20

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