7x+9=81

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Solution for 7x+9=81 equation: 



7x+9=81

We move all terms to the left:

7x+9-(81)=0

We add all the numbers together, and all the variables

7x-72=0

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

7x=72

x=72/7

x=10+2/7

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