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0.006(1000-x)+0.10x=80
We move all terms to the left:
0.006(1000-x)+0.10x-(80)=0
We add all the numbers together, and all the variables
0.006(-1x+1000)+0.10x-80=0
We add all the numbers together, and all the variables
0.10x+0.006(-1x+1000)-80=0
We multiply parentheses
0.10x-0.006x+6-80=0
We add all the numbers together, and all the variables
0.094x-74=0
We move all terms containing x to the left, all other terms to the right
0.094x=74
x=74/0.094
x=787+0.022/0.094
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