(3*(-4b)+40)/2=-4b

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Solution for (3*(-4b)+40)/2=-4b equation: 



(3(-4b)+40)/2=-4b

We move all terms to the left:

(3(-4b)+40)/2-(-4b)=0

We get rid of parentheses

(3(-4b)+40)/2+4b=0

We multiply all the terms by the denominator


(3(-4b)+40)+4b*2=0



We calculate terms in parentheses: +(3(-4b)+40), so:

3(-4b)+40

We multiply parentheses

-12b+40

Back to the equation:

+(-12b+40)



Wy multiply elements

(-12b+40)+8b=0

We get rid of parentheses

-12b+8b+40=0

We add all the numbers together, and all the variables

-4b+40=0

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

-4b=-40

b=-40/-4

b=+10

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