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0.05x+0.1(150-x)=0.8(150)
We move all terms to the left:
0.05x+0.1(150-x)-(0.8(150))=0
We add all the numbers together, and all the variables
0.05x+0.1(-1x+150)-(0.815)=0
We add all the numbers together, and all the variables
0.05x+0.1(-1x+150)-0.815=0
We multiply parentheses
0.05x-0.1x+15-0.815=0
We add all the numbers together, and all the variables
-0.05x+14.185=0
We move all terms containing x to the left, all other terms to the right
-0.05x=-14.185
x=-14.185/-0.05
x=283+0.035/0.05
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