18-3k+9k=4k

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Solution for 18-3k+9k=4k equation: 



18-3k+9k=4k

We move all terms to the left:

18-3k+9k-(4k)=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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