15=1-2k+8

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Solution for 15=1-2k+8 equation: 



15=1-2k+8

We move all terms to the left:

15-(1-2k+8)=0

We add all the numbers together, and all the variables

-(-2k+9)+15=0

We get rid of parentheses

2k-9+15=0

We add all the numbers together, and all the variables

2k+6=0

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

2k=-6

k=-6/2

k=-3

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