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Andre45 [30]
3 years ago
12

8k-1=15 ? Help I have a question were we have to work this out what do I do?

Mathematics
2 answers:
dybincka [34]3 years ago
7 0
You have to add 1 to  the -1 and you will get 0.What you have to do next is also add 1 to 15 because you want a variable on one side and a number on the other.So now you have 8k=16. So you divide 8 to 8k and you get nothing divide 8 and 16 and your answer for k =2 hope you get it right.trust mw it is very easy when you get use to it 

adell [148]3 years ago
5 0
8k-1=15\ \ \ \ /+1\\\\8k-1+1=15+1\\\\8k=16\ \ \ \ /:8\\\\8k:8=16:8\\\\k=2
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