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X-0.4X=497440
We move all terms to the left:
X-0.4X-(497440)=0
We add all the numbers together, and all the variables
0.6X-497440=0
We move all terms containing X to the left, all other terms to the right
0.6X=497440
X=497440/0.6
X=829066+0.40000000002328/0.6
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