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0.6x + 0.9(3,000-x)=0.8
We simplify the equation to the form, which is simple to understand
0.6x + 0.9(3,000-x)=0.8
Reorder the terms in parentheses
0.6x+(+2.7-0.9x)=0.8
Remove unnecessary parentheses
+ 0.6x+2.7-0.9x=0.8
We move all terms containing x to the left and all other terms to the right.
+ 0.6x-0.9x=0.8-2.7
We simplify left and right side of the equation.
-0.3x=-1.9
We divide both sides of the equation by -0.3 to get x.
x=6.33333333333
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