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0.10x+00.5(12-x)=0.10(9)
We move all terms to the left:
0.10x+00.5(12-x)-(0.10(9))=0
We add all the numbers together, and all the variables
0.10x+00.5(-1x+12)-(0.109)=0
We add all the numbers together, and all the variables
0.10x+00.5(-1x+12)-0.109=0
We multiply parentheses
0.10x-0.5x+6-0.109=0
We add all the numbers together, and all the variables
-0.4x+5.891=0
We move all terms containing x to the left, all other terms to the right
-0.4x=-5.891
x=-5.891/-0.4
x=14+0.291/0.4
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