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Algebra
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5 + 3r - 4 = 7r + 8 - 3r

Sep 20th, 2014

5+3r-4 = 7r+8-3r

1+3r =4r+8

3r-4r = 8-1

-r =7

r = -7

Answer: r = -7

Sep 20th, 2014

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