x+20x=126

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Solution for x+20x=126 equation: 



x+20x=126

We move all terms to the left:

x+20x-(126)=0

We add all the numbers together, and all the variables

21x-126=0

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

21x=126

x=126/21

x=6

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