11+21x=20+20x

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Solution for 11+21x=20+20x equation: 



11+21x=20+20x

We move all terms to the left:

11+21x-(20+20x)=0

We add all the numbers together, and all the variables

21x-(20x+20)+11=0

We get rid of parentheses

21x-20x-20+11=0

We add all the numbers together, and all the variables

x-9=0

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

x=9

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