10+9k=7k-8

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Solution for 10+9k=7k-8 equation: 



10+9k=7k-8

We move all terms to the left:

10+9k-(7k-8)=0

We get rid of parentheses

9k-7k+8+10=0

We add all the numbers together, and all the variables

2k+18=0

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

2k=-18

k=-18/2

k=-9

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