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

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



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

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

3x+7x-20+4=0

We add all the numbers together, and all the variables

10x-16=0

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

10x=16

x=16/10

x=1+3/5

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