-20-3x=-4-7x

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Solution for -20-3x=-4-7x equation: 



-20-3x=-4-7x

We move all terms to the left:

-20-3x-(-4-7x)=0

We add all the numbers together, and all the variables

-3x-(-7x-4)-20=0

We get rid of parentheses

-3x+7x+4-20=0

We add all the numbers together, and all the variables

4x-16=0

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

4x=16

x=16/4

x=4

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