7/8 Math

20 - K/15 = 17
What is the value of k?

1. What I would do is subtract 20 on both sides so it would be:

K/15= -3

Then times 15 on each side; you would rid of the 15 on the left side but on the right side you would get 45 because 3 times 15=45

K= 45

posted by Lily

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