20-(x+4)=9

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Solution for 20-(x+4)=9 equation: 



20-(x+4)=9

We move all terms to the left:

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

We add all the numbers together, and all the variables

-(x+4)+11=0

We get rid of parentheses

-x-4+11=0

We add all the numbers together, and all the variables

-1x+7=0

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

-x=-7

x=-7/-1

x=+7

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