-20+7x=-4(5-7x)

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Solution for -20+7x=-4(5-7x) equation: 



-20+7x=-4(5-7x)

We move all terms to the left:

-20+7x-(-4(5-7x))=0

We add all the numbers together, and all the variables

7x-(-4(-7x+5))-20=0



We calculate terms in parentheses: -(-4(-7x+5)), so:

-4(-7x+5)

We multiply parentheses

28x-20

Back to the equation:

-(28x-20)



We get rid of parentheses

7x-28x+20-20=0

We add all the numbers together, and all the variables

-21x=0

x=0/-21

x=0

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