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x-0.4x=20585
We move all terms to the left:
x-0.4x-(20585)=0
We add all the numbers together, and all the variables
0.6x-20585=0
We move all terms containing x to the left, all other terms to the right
0.6x=20585
x=20585/0.6
x=34308+0.20000000000073/0.6
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