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B-4/6=b/2 please help

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(b-4)/(6)=(b)/(2)\ \ \ \ |cross multiply\\\\2(b-4)=6b\ \ \ |use\ distributive\ property:a(b-c)=ab-ac\\\\2b-8=6b\ \ \  \ |add\ 8\ to\ both\ sides\\\\2b=6b+8\ \ \ \ |subtract\ 6y\ from\ both\ sides\\\\-4b=8\ \ \ \ |divide\ both\ sides\ by\ (-4)\\\\\boxed{b=-2}
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