7(1-x)=-4(x-7)

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Solution for 7(1-x)=-4(x-7) equation: 



7(1-x)=-4(x-7)

We move all terms to the left:

7(1-x)-(-4(x-7))=0

We add all the numbers together, and all the variables

7(-1x+1)-(-4(x-7))=0

We multiply parentheses

-7x-(-4(x-7))+7=0



We calculate terms in parentheses: -(-4(x-7)), so:

-4(x-7)

We multiply parentheses

-4x+28

Back to the equation:

-(-4x+28)



We get rid of parentheses

-7x+4x-28+7=0

We add all the numbers together, and all the variables

-3x-21=0

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

-3x=21

x=21/-3

x=-7

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