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stira [4]
3 years ago
12

Solve 7w – 3r = 15 for r. Show your work.

Mathematics
2 answers:
uysha [10]3 years ago
5 0
What's w?

Well without W, we just have to trial and error.

R could be 2.

   7w - 3r = 15
7w - 3(2) = 15
     7w - 6 = 15
          7w = 21
           /7     /7
            w = 3

So if W = 3, R could be 2.
krek1111 [17]3 years ago
4 0
  7w - 3r = 15
7w - 3(2) = 15
     7w - 6 = 15
          7w = 21
           /7     /7
<span>            w = 3</span>
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