3x+7=9+7x

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Solution for 3x+7=9+7x equation: 



3x+7=9+7x

We move all terms to the left:

3x+7-(9+7x)=0

We add all the numbers together, and all the variables

3x-(7x+9)+7=0

We get rid of parentheses

3x-7x-9+7=0

We add all the numbers together, and all the variables

-4x-2=0

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

-4x=2

x=2/-4

x=-1/2

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