-10.5=2.1b

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Solution for -10.5=2.1b equation: 



-10.5=2.1b

We move all terms to the left:

-10.5-(2.1b)=0

We add all the numbers together, and all the variables

-(+2.1b)-10.5=0

We get rid of parentheses

-2.1b-10.5=0

We move all terms containing b to the left, all other terms to the right

-2.1b=10.5

b=10.5/-2.1

b=-5

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