-0.10(90)+0.85x=0.05(x-20)

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Solution for -0.10(90)+0.85x=0.05(x-20) equation: 



-0.10(90)+0.85x=0.05(x-20)

We move all terms to the left:

-0.10(90)+0.85x-(0.05(x-20))=0

We add all the numbers together, and all the variables

0.85x-(0.05(x-20))-0.109=0



We calculate terms in parentheses: -(0.05(x-20)), so:

0.05(x-20)

We multiply parentheses

0.05x-1

Back to the equation:

-(0.05x-1)



We get rid of parentheses

0.85x-0.05x+1-0.109=0

We add all the numbers together, and all the variables

0.8x+0.891=0

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

0.8x=-0.891

x=-0.891/0.8

x=-1+0.091/0.8

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