20=4x+-12

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Solution for 20=4x+-12 equation: 



20=4x+-12

We move all terms to the left:

20-(4x+-12)=0

We add all the numbers together, and all the variables

-(4x-12)+20=0

We get rid of parentheses

-4x+12+20=0

We add all the numbers together, and all the variables

-4x+32=0

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

-4x=-32

x=-32/-4

x=+8

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