7(k-10)=91

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Solution for 7(k-10)=91 equation: 



7(k-10)=91

We move all terms to the left:

7(k-10)-(91)=0

We multiply parentheses

7k-70-91=0

We add all the numbers together, and all the variables

7k-161=0

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

7k=161

k=161/7

k=23

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