0x=3x-42

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Solution for 0x=3x-42 equation: 



0x=3x-42

We move all terms to the left:

0x-(3x-42)=0

We add all the numbers together, and all the variables

x-(3x-42)=0

We get rid of parentheses

x-3x+42=0

We add all the numbers together, and all the variables

-2x+42=0

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

-2x=-42

x=-42/-2

x=+21

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