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x*0.9=128000
We move all terms to the left:
x*0.9-(128000)=0
Wy multiply elements
0.9x-128000=0
We move all terms containing x to the left, all other terms to the right
0.9x=128000
x=128000/0.9
x=142222+0.19999999999709/0.9
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