SOLUTION: 4b+12=7b

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Question 141651: 4b+12=7b
Answer by nabla(475) About Me  (Show Source):
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4b+12=7b
12=3b (subtract 4b from each side)
4=b (divide each side by 3)

check: 4(4)+12=28.
7(4)=28. (28=28) done.