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300=21.71x-800
We move all terms to the left:
300-(21.71x-800)=0
We get rid of parentheses
-21.71x+800+300=0
We add all the numbers together, and all the variables
-21.71x+1100=0
We move all terms containing x to the left, all other terms to the right
-21.71x=-1100
x=-1100/-21.71
x=50+1.9333333333333/2.8946666666667
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