9(9+k)=84

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Solution for 9(9+k)=84 equation: 



9(9+k)=84

We move all terms to the left:

9(9+k)-(84)=0

We add all the numbers together, and all the variables

9(k+9)-84=0

We multiply parentheses

9k+81-84=0

We add all the numbers together, and all the variables

9k-3=0

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

9k=3

k=3/9

k=1/3

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