3x+9+9+5x=81

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Solution for 3x+9+9+5x=81 equation: 



3x+9+9+5x=81

We move all terms to the left:

3x+9+9+5x-(81)=0

We add all the numbers together, and all the variables

8x-63=0

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

8x=63

x=63/8

x=7+7/8

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