4x+3x=12+x

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



4x+3x=12+x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We add all the numbers together, and all the variables

7x-(x+12)=0

We get rid of parentheses

7x-x-12=0

We add all the numbers together, and all the variables

6x-12=0

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

6x=12

x=12/6

x=2

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