30x+20=420

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Solution for 30x+20=420 equation: 



30x+20=420

We move all terms to the left:

30x+20-(420)=0

We add all the numbers together, and all the variables

30x-400=0

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

30x=400

x=400/30

x=13+1/3

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