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HomertheGenius
Graph of the system is in the attachment.
We will verify the answer:
3 r + b = 9.35
2 r + b = 8.40
--------------------
b = 8.40 - 2 b
3 r + 8.40 - 2 b = 9.35
r = 9.35 - 8.40
r = 0.95,  b = 6.50
Ver imagen HomertheGenius

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