12x+300=4200

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Solution for 12x+300=4200 equation: 



12x+300=4200

We move all terms to the left:

12x+300-(4200)=0

We add all the numbers together, and all the variables

12x-3900=0

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

12x=3900

x=3900/12

x=325

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