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3x-19=9x-51
We move all terms to the left:
3x-19-(9x-51)=0
We get rid of parentheses
3x-9x+51-19=0
We add all the numbers together, and all the variables
-6x+32=0
We move all terms containing x to the left, all other terms to the right
-6x=-32
x=-32/-6
x=5+1/3
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