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0.10x+0.08(2x)+0.06(0.5x)=87000
We move all terms to the left:
0.10x+0.08(2x)+0.06(0.5x)-(87000)=0
We add all the numbers together, and all the variables
0.10x+0.082x+0.06(+0.5x)-87000=0
We add all the numbers together, and all the variables
0.182x+0.06(+0.5x)-87000=0
We multiply parentheses
0.182x+0x-87000=0
We add all the numbers together, and all the variables
1.182x-87000=0
We move all terms containing x to the left, all other terms to the right
1.182x=87000
x=87000/1.182
x=73604+0.072000000000116/1.182
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