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0.9-x/9=0.8x+1/2
We move all terms to the left:
0.9-x/9-(0.8x+1/2)=0
We add all the numbers together, and all the variables
-x/9-(+0.8x+1/2)+0.9=0
We get rid of parentheses
-x/9-0.8x+0.9-1/2=0
We calculate fractions
There is no solution for this equation
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