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7 + 5r + 3 + 5 = 1 + 7r
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4 votes
7 + 5r + 3 + 5 = 1 + 7r

User Vcetinick
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2 Answers

3 votes
7+5r+3+5=1+ 7r
15+5r=1+7r
14=2r
r=7
User Benjamin Seiller
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6.5k points
1 vote
7+5r+3+5=1+7r
15+5r=1+7r
-5r=-5r
15=1+2r
-1=-1
14=2r
7=r
User Jeremy Farrance
by
6.0k points
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