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0.1x+0.15(1-x)=0.3
We move all terms to the left:
0.1x+0.15(1-x)-(0.3)=0
We add all the numbers together, and all the variables
0.1x+0.15(-1x+1)-(0.3)=0
We add all the numbers together, and all the variables
0.1x+0.15(-1x+1)-0.3=0
We multiply parentheses
0.1x-0.15x+0.15-0.3=0
We add all the numbers together, and all the variables
-0.05x-0.15=0
We move all terms containing x to the left, all other terms to the right
-0.05x=0.15
x=0.15/-0.05
x=-2+0.05/0.05
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