4+7(k+5)=81

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Solution for 4+7(k+5)=81 equation: 



4+7(k+5)=81

We move all terms to the left:

4+7(k+5)-(81)=0

We add all the numbers together, and all the variables

7(k+5)-77=0

We multiply parentheses

7k+35-77=0

We add all the numbers together, and all the variables

7k-42=0

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

7k=42

k=42/7

k=6

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