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03-07-2018
Mathematics

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What value of r makes –6r + 2(r + 2) – 5 = -20 true?

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Аноним Аноним

03-07-2018

Hello!

To find the answer we need to solve for r. First we undo the parentheses.

-6r+2r+4-5=-20

Now we combine like terms.

-4r-1=-20

We add one to both sides.

-4r=-19

Divide both sides by -4.

r=4.75

I hope this helps!

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