5=-4/5*5-b

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Solution for 5=-4/5*5-b equation: 



5=-4/5*5-b

We move all terms to the left:

5-(-4/5*5-b)=0



Domain of the equation: 5*5-b)!=0

b∈R



We add all the numbers together, and all the variables

-(-1b-4/5*5)+5=0

We get rid of parentheses

1b+5+4/5*5=0

We multiply all the terms by the denominator


1b*5*5+4+5*5*5=0

We add all the numbers together, and all the variables

1b*5*5+129=0

Wy multiply elements

25b*5+129=0

Wy multiply elements

125b+129=0

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

125b=-129

b=-129/125

b=-1+4/125

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