20=2x-7-5x

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Solution for 20=2x-7-5x equation: 



20=2x-7-5x

We move all terms to the left:

20-(2x-7-5x)=0

We add all the numbers together, and all the variables

-(-3x-7)+20=0

We get rid of parentheses

3x+7+20=0

We add all the numbers together, and all the variables

3x+27=0

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

3x=-27

x=-27/3

x=-9

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