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7(x-3)+3=7x+7
We move all terms to the left:
7(x-3)+3-(7x+7)=0
We multiply parentheses
7x-(7x+7)-21+3=0
We get rid of parentheses
7x-7x-7-21+3=0
We add all the numbers together, and all the variables
-25!=0
There is no solution for this equation
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