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6b 6 4 3b 27 12 solve proportion

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6b-6/-4 =3b+27/-12 Solve proportion

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Answer to a math question 6b-6/-4 =3b+27/-12 Solve proportion

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$(6b-6)(-12)=(-4)(3b+27)$

$-12(6b-6)=-4(3b+27)$

$-72b+72=-12b-108$

$-72b=-12b-180$

$-60b=-180$

$b=3$

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