21x+7=23x-5

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Solution for 21x+7=23x-5 equation: 



21x+7=23x-5

We move all terms to the left:

21x+7-(23x-5)=0

We get rid of parentheses

21x-23x+5+7=0

We add all the numbers together, and all the variables

-2x+12=0

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

-2x=-12

x=-12/-2

x=+6

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