9=1-2(-2+5x)

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Solution for 9=1-2(-2+5x) equation: 



9=1-2(-2+5x)

We move all terms to the left:

9-(1-2(-2+5x))=0

We add all the numbers together, and all the variables

-(1-2(5x-2))+9=0



We calculate terms in parentheses: -(1-2(5x-2)), so:

1-2(5x-2)

determiningTheFunctionDomain
-2(5x-2)+1

We multiply parentheses

-10x+4+1

We add all the numbers together, and all the variables

-10x+5

Back to the equation:

-(-10x+5)



We get rid of parentheses

10x-5+9=0

We add all the numbers together, and all the variables

10x+4=0

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

10x=-4

x=-4/10

x=-2/5

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