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x-0.45x=30000
We move all terms to the left:
x-0.45x-(30000)=0
We add all the numbers together, and all the variables
0.55x-30000=0
We move all terms containing x to the left, all other terms to the right
0.55x=30000
x=30000/0.55
x=54545+0.24999999999636/0.55
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