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7 + 5r + 3 + 5 = 1 + 7r

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7 + 5r + 3 + 5 = 1 + 7r

asked Feb 10, 2018 229k views

4 votes

7 + 5r + 3 + 5 = 1 + 7r

Mathematics
middle-school

Vcetinick asked

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2 Answers

3 votes

7+5r+3+5=1+ 7r
15+5r=1+7r
14=2r
r=7

Benjamin Seiller answered Feb 13, 2018

by Benjamin Seiller

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1 vote

7+5r+3+5=1+7r
15+5r=1+7r
-5r=-5r
15=1+2r
-1=-1
14=2r
7=r

Jeremy Farrance answered Feb 15, 2018

by Jeremy Farrance

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