20+-8=+12+x+-4

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Solution for 20+-8=+12+x+-4 equation: 



20+-8=+12+x+-4

We move all terms to the left:

20+-8-(+12+x+-4)=0

We add all the numbers together, and all the variables

-(x+8)+20-8+=0

We add all the numbers together, and all the variables

-(x+8)=0

We get rid of parentheses

-x-8=0

We add all the numbers together, and all the variables

-1x-8=0

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

-x=8

x=8/-1

x=-8

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