3x+7+4x=9

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Solution for 3x+7+4x=9 equation: 



3x+7+4x=9

We move all terms to the left:

3x+7+4x-(9)=0

We add all the numbers together, and all the variables

7x-2=0

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

7x=2

x=2/7

x=2/7

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