03-02-2017
Mathematics

contestada

What is the value of r in the equation 4r − 8 = 5r + 12?

−20
−1
1
20

Respuesta :

joshlarge4444 joshlarge4444

03-02-2017

The answer is -20. if you move all of the numbers with r to the right and all of the numbers without r to the left, you get r = -20.

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Apocrophon Apocrophon

03-02-2017

[tex] 4r-8=5r+12\\-8-12=5r-4r\\-20=r[/tex]
Thus your answer is -20.

Answer Link

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