How do you solve $81=2.7b$ ?

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Answer 1 · 2016-09-09T13:08:31

I found: $b=30$

We can multiply both sides by $10$ :
$10*81=10*2.7b$
$810=27b$
rearrange to isolate $b$ :
$b=810/27$
dividing we get: $b=30$

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How do you solve 81=2.7b81=2.7b?