315+7x=12x

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Solution for 315+7x=12x equation: 



315+7x=12x

We move all terms to the left:

315+7x-(12x)=0

We add all the numbers together, and all the variables

-5x+315=0

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

-5x=-315

x=-315/-5

x=+63

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