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-7(x-3)=23-7x
We move all terms to the left:
-7(x-3)-(23-7x)=0
We add all the numbers together, and all the variables
-7(x-3)-(-7x+23)=0
We multiply parentheses
-7x-(-7x+23)+21=0
We get rid of parentheses
-7x+7x-23+21=0
We add all the numbers together, and all the variables
-2!=0
There is no solution for this equation
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