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-0.75x+0.8x=0.85
We move all terms to the left:
-0.75x+0.8x-(0.85)=0
We add all the numbers together, and all the variables
0.05x-0.85=0
We move all terms containing x to the left, all other terms to the right
0.05x=0.85
x=0.85/0.05
x=17+-1.1102230246252E-16/0.05
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