SOLUTION: How do you solve 9 + 3k = 2k - 12?

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Question 369965: How do you solve 9 + 3k = 2k - 12?
Found 2 solutions by jim_thompson5910, mananth:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
9%2B3k=2k-12 Start with the given equation.


3k=2k-12-9 Subtract 9 from both sides.


3k-2k=-12-9 Subtract 2k from both sides.


k=-12-9 Combine like terms on the left side.


k=-21 Combine like terms on the right side.


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Answer:

So the solution is k=-21


If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my tutoring website

Jim

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
9 + 3k = 2k - 12
add -2k on both sides
9+3k-2k=2k-2k-12
9+k=-12
add -9 to both sides
9-9+k=-12-9
k=-21
...
m.ananth@hotmail.ca