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2x+1=19.
We move all terms to the left:
2x+1-(19.)=0
We add all the numbers together, and all the variables
2x+1-19=0
We add all the numbers together, and all the variables
2x-18=0
We move all terms containing x to the left, all other terms to the right
2x=18
x=18/2
x=9
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