4x-(-21-7x)=-1

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Solution for 4x-(-21-7x)=-1 equation: 



4x-(-21-7x)=-1

We move all terms to the left:

4x-(-21-7x)-(-1)=0

We add all the numbers together, and all the variables

4x-(-7x-21)-(-1)=0

We add all the numbers together, and all the variables

4x-(-7x-21)+1=0

We get rid of parentheses

4x+7x+21+1=0

We add all the numbers together, and all the variables

11x+22=0

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

11x=-22

x=-22/11

x=-2

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