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What is 6b plus 21 equals 7b-21 equal to?

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Anonymous

∙ 12y ago
Updated: 8/20/2019

If: 6b+21 = 7b-21

Then: 6b-7b = -21-21

And: -b = -42

So: b = 42

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Wiki User

∙ 12y ago
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