7w+23=9w+21

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Solution for 7w+23=9w+21 equation: 



7w+23=9w+21

We move all terms to the left:

7w+23-(9w+21)=0

We get rid of parentheses

7w-9w-21+23=0

We add all the numbers together, and all the variables

-2w+2=0

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

-2w=-2

w=-2/-2

w=1

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