20=7+2x

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Solution for 20=7+2x equation: 



20=7+2x

We move all terms to the left:

20-(7+2x)=0

We add all the numbers together, and all the variables

-(2x+7)+20=0

We get rid of parentheses

-2x-7+20=0

We add all the numbers together, and all the variables

-2x+13=0

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

-2x=-13

x=-13/-2

x=6+1/2

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