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Bryson
Mathematics
21 July, 19:38
Step by step 6r+7=13+7r
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Vegas
21 July, 19:41
0
6r + 7 = 13 + 7r ... subtract 7r from both sides
6r - 7r + 7 = 13 + 7r - 7r ... simplify
-r + 7 = 13 ... subtract 7 from both sides
-r + 7 - 7 = 13 - 7 ... simplify
-r = 6 ... multiply by - 1 to make r positive
r = - 6
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Blaine Horn
21 July, 19:53
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6r+7=13+7r
6r-7r=13-7
-r = 6
r = - 6
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