770=25(-1,6b+30,8)+40b

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Solution for 770=25(-1,6b+30,8)+40b equation: 



770=25(-1.6b+30.8)+40b

We move all terms to the left:

770-(25(-1.6b+30.8)+40b)=0



We calculate terms in parentheses: -(25(-1.6b+30.8)+40b), so:

25(-1.6b+30.8)+40b

We add all the numbers together, and all the variables

40b+25(-1.6b+30.8)

We multiply parentheses

40b-25b+770

We add all the numbers together, and all the variables

15b+770

Back to the equation:

-(15b+770)



We get rid of parentheses

-15b-770+770=0

We add all the numbers together, and all the variables

-15b=0

b=0/-15

b=0

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