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0.85(1-x)+0.15x=0
We add all the numbers together, and all the variables
0.85(-1x+1)+0.15x=0
We add all the numbers together, and all the variables
0.15x+0.85(-1x+1)=0
We multiply parentheses
0.15x-0.85x+0.85=0
We add all the numbers together, and all the variables
-0.7x+0.85=0
We move all terms containing x to the left, all other terms to the right
-0.7x=-0.85
x=-0.85/-0.7
x=1+0.15/0.7
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