SOLUTION: Solve the equations {{{(3)^x}}}.{{{(9)^(2y) = 1}}}, {{{(5)^(3x) (25)^y = 1/125}}} *Please answer as soon as possible bro :)

Question 465558: Solve the equations .,

*Please answer as soon as possible bro :)
Answer by sudhanshu_kmr(1152) (Show Source): You can put this solution on YOUR website!
3^x * 9^2y = 1
=> 3^(x+4y) = 1, [ because 9 = 3^2]
so, x+ 4y =0,[ because 3^0 =1 ]

5 ^(3x+2y) = 5^(-3)
so, 3x+2y= -3
now, multiply the second equation by 2 and subtract from first equation,
x -6x = 0 - (-6)
=> -5x = 6
so, x = -6/5
and y = 6/20

you are welcome to get free online help : sudhanshu.cochin@gmail.com

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