-(5x-0.4)=-7(-0.4-x)

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Solution for -(5x-0.4)=-7(-0.4-x) equation: 



-(5x-0.4)=-7(-0.4-x)

We move all terms to the left:

-(5x-0.4)-(-7(-0.4-x))=0

We add all the numbers together, and all the variables

-(5x-0.4)-(-7(-1x-0.4))=0

We get rid of parentheses

-5x-(-7(-1x-0.4))+0.4=0



We calculate terms in parentheses: -(-7(-1x-0.4)), so:

-7(-1x-0.4)

We multiply parentheses

7x+2.8

Back to the equation:

-(7x+2.8)



We get rid of parentheses

-5x-7x-2.8+0.4=0

We add all the numbers together, and all the variables

-12x-2.4=0

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

-12x=2.4

x=2.4/-12

x=-1/5

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