solve for x & y:
9
x=3y-2
, 81y=32x(27)x
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Answer:
If 2^x 2^y = 8 and 9^x 3^y = 81, then (x,y) equals: A. (1,2) B. (2,1) C. (1,1) D. (2,2) E. (1,3) I ... For the second half, GMATPrep v2 says that (3^2x)(3^y) = 3^4 becomes 32x + y = 34. ... The solution of which is x = 1 and y = 2. ... Jun 7 at 09:27am.
Missing: 81y= | Must include: 81y=
Step-by-step explanation:
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Step-by-step explanation:
81y = 32(27x) => 81y = 32[27(3y-2)] => 81y = 32[ 81y-54]
81y = 2592y - 1728 => 1728 = 2511y => y = 1728/2511
y= 0.68
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