x+0.3(x)=100

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Solution for x+0.3(x)=100 equation:



x+0.3(x)=100
We move all terms to the left:
x+0.3(x)-(100)=0
We add all the numbers together, and all the variables
1.3x-100=0
We move all terms containing x to the left, all other terms to the right
1.3x=100
x=100/1.3
x=76+1/1.08333333333

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