9+4k=1+8k

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Solution for 9+4k=1+8k equation: 



9+4k=1+8k

We move all terms to the left:

9+4k-(1+8k)=0

We add all the numbers together, and all the variables

4k-(8k+1)+9=0

We get rid of parentheses

4k-8k-1+9=0

We add all the numbers together, and all the variables

-4k+8=0

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

-4k=-8

k=-8/-4

k=+2

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