21x-16=x

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Solution for 21x-16=x equation: 



21x-16=x

We move all terms to the left:

21x-16-(x)=0

We add all the numbers together, and all the variables

20x-16=0

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

20x=16

x=16/20

x=4/5

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