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Mathematics 17 Online
OpenStudy (anonymous):

3-10b=2b-9

OpenStudy (anonymous):

ok add 10b on both sides

OpenStudy (anonymous):

3 = 12b -9

OpenStudy (anonymous):

add 9 on both sides, so we get 12 = 12b

OpenStudy (anonymous):

divide by 12 on both sides , 1 = b or b =1

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