21+5x=20x

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Solution for 21+5x=20x equation: 



21+5x=20x

We move all terms to the left:

21+5x-(20x)=0

We add all the numbers together, and all the variables

-15x+21=0

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

-15x=-21

x=-21/-15

x=1+2/5

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