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View Full Version : If x 4y=5 & 5x 6=7 then what's 3x 5=?


cristy15
Sep 10, 2010, 02:36 PM

sunshinechild69
Sep 10, 2010, 02:56 PM
Your question is a little unclear but I think the answer is 4.56521739

Unknown008
Sep 11, 2010, 12:55 AM
Is this what you are asking for?

x^{4y} = 8

5x^6 = 7

What is 3x^5 ?

If so, the answers turn out as:
y = 0.035 and 1.8
x = -1.1 and 1.1