x+0.2*x=100

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Solution for x+0.2*x=100 equation:



x+0.2x=100
We move all terms to the left:
x+0.2x-(100)=0
We add all the numbers together, and all the variables
1.2x-100=0
We move all terms containing x to the left, all other terms to the right
1.2x=100
x=100/1.2
x=83+0.40000000000001/1.2

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