12x+3000=4200+x

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Solution for 12x+3000=4200+x equation: 



12x+3000=4200+x

We move all terms to the left:

12x+3000-(4200+x)=0

We add all the numbers together, and all the variables

12x-(x+4200)+3000=0

We get rid of parentheses

12x-x-4200+3000=0

We add all the numbers together, and all the variables

11x-1200=0

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

11x=1200

x=1200/11

x=109+1/11

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