13x=3x-420

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Solution for 13x=3x-420 equation: 



13x=3x-420

We move all terms to the left:

13x-(3x-420)=0

We get rid of parentheses

13x-3x+420=0

We add all the numbers together, and all the variables

10x+420=0

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

10x=-420

x=-420/10

x=-42

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