21x-7=20x+10

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Solution for 21x-7=20x+10 equation: 



21x-7=20x+10

We move all terms to the left:

21x-7-(20x+10)=0

We get rid of parentheses

21x-20x-10-7=0

We add all the numbers together, and all the variables

x-17=0

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

x=17

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