SOLUTION: 3k-5=7k-21

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Question 18371: 3k-5=7k-21
Answer by piglet162431(90) About Me  (Show Source):
You can put this solution on YOUR website!
k=4
First side each like terms and integer in each side
3k-7k=-21+5
-4k=-16
Now isolate k by dividing -4 each side.
k= 4
Check,
3(4)-5=7(4)-21
12-5=28-21
7=7