4x-5x=12-7x

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Solution for 4x-5x=12-7x equation: 



4x-5x=12-7x

We move all terms to the left:

4x-5x-(12-7x)=0

We add all the numbers together, and all the variables

4x-5x-(-7x+12)=0

We add all the numbers together, and all the variables

-1x-(-7x+12)=0

We get rid of parentheses

-1x+7x-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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