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0.4x+x=19994
We move all terms to the left:
0.4x+x-(19994)=0
We add all the numbers together, and all the variables
1.4x-19994=0
We move all terms containing x to the left, all other terms to the right
1.4x=19994
x=19994/1.4
x=14281+0.60000000000218/1.4
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