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

User Viraf
by
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2 Answers

4 votes
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.
User Qwertie
by
8.4k points
5 votes
7w - 3r = 15
7w - 3(2) = 15
7w - 6 = 15
7w = 21
/7 /7
w = 3
User Morric
by
8.8k points
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