0,3x+x=400

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Solution for 0,3x+x=400 equation: 



0.3x+x=400

We move all terms to the left:

0.3x+x-(400)=0

We add all the numbers together, and all the variables

1.3x-400=0

We move all terms containing x to the left, all other terms to the right

1.3x=400

x=400/1.3

x=307+0.89999999999998/1.3

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