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x+(0.43x)=100
We move all terms to the left:
x+(0.43x)-(100)=0
We add all the numbers together, and all the variables
x+(+0.43x)-100=0
We get rid of parentheses
x+0.43x-100=0
We add all the numbers together, and all the variables
1.43x-100=0
We move all terms containing x to the left, all other terms to the right
1.43x=100
x=100/1.43
x=69+1/1.0751879699248
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