20=5+9x-4-12x

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Solution for 20=5+9x-4-12x equation: 



20=5+9x-4-12x

We move all terms to the left:

20-(5+9x-4-12x)=0

We add all the numbers together, and all the variables

-(-3x+1)+20=0

We get rid of parentheses

3x-1+20=0

We add all the numbers together, and all the variables

3x+19=0

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

3x=-19

x=-19/3

x=-6+1/3

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