31x-11+13-21x=4x+5-9+3x

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Solution for 31x-11+13-21x=4x+5-9+3x equation: 



31x-11+13-21x=4x+5-9+3x

We move all terms to the left:

31x-11+13-21x-(4x+5-9+3x)=0

We add all the numbers together, and all the variables

31x-21x-(7x-4)-11+13=0

We add all the numbers together, and all the variables

10x-(7x-4)+2=0

We get rid of parentheses

10x-7x+4+2=0

We add all the numbers together, and all the variables

3x+6=0

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

3x=-6

x=-6/3

x=-2

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