etangarcia25 etangarcia25

30-09-2021
Mathematics

contestada

what is b −4b=−5(3−b)+6

b =

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haunga2005 haunga2005

30-09-2021

simplify
b-4b=-3b
-5(3-b)+6
-15+5b+6
combine like terms
(5b)+(-15+6)
-3b=5b-9
subtract 5b from eachside
-3b-(5b)=5b-9-(5b)
-8b=-9
get rid of the -8 by dividing each side by -8
-8b/-8=-9/-8
answer is b=9/8

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