21x-9=14x+7

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Solution for 21x-9=14x+7 equation: 



21x-9=14x+7

We move all terms to the left:

21x-9-(14x+7)=0

We get rid of parentheses

21x-14x-7-9=0

We add all the numbers together, and all the variables

7x-16=0

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

7x=16

x=16/7

x=2+2/7

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