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1x+3=9x+3
We move all terms to the left:
1x+3-(9x+3)=0
We add all the numbers together, and all the variables
x-(9x+3)+3=0
We get rid of parentheses
x-9x-3+3=0
We add all the numbers together, and all the variables
-8x=0
x=0/-8
x=0
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