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0.08(10000-x)=500
We move all terms to the left:
0.08(10000-x)-(500)=0
We add all the numbers together, and all the variables
0.08(-1x+10000)-500=0
We multiply parentheses
-0.08x+800-500=0
We add all the numbers together, and all the variables
-0.08x+300=0
We move all terms containing x to the left, all other terms to the right
-0.08x=-300
x=-300/-0.08
x=+3750
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