12=3x+4+5x

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Solution for 12=3x+4+5x equation: 



12=3x+4+5x

We move all terms to the left:

12-(3x+4+5x)=0

We add all the numbers together, and all the variables

-(8x+4)+12=0

We get rid of parentheses

-8x-4+12=0

We add all the numbers together, and all the variables

-8x+8=0

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

-8x=-8

x=-8/-8

x=1

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