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2a + 2b = c

subtract 2a from both sides

2a - 2a + 2b = c - 2a

2b = c - 2a

divide both sides by 2

(2/2)b = (c - 2a)/2

b = (c - 2a)/2

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2011-08-29 21:36:12
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Q: How do you solve for the variable b in 2a plus 2b equals c?
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