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10.5x-5.25x=10000
We move all terms to the left:
10.5x-5.25x-(10000)=0
We add all the numbers together, and all the variables
5.25x-10000=0
We move all terms containing x to the left, all other terms to the right
5.25x=10000
x=10000/5.25
x=1904+4/5.25
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