b/5=-4.2

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Solution for b/5=-4.2 equation: 



b/5=-4.2

We move all terms to the left:

b/5-(-4.2)=0

We add all the numbers together, and all the variables

b/5+4.2=0

We multiply all the terms by the denominator


b+(4.2)*5=0

We add all the numbers together, and all the variables

b+21=0

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

b=-21

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