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Question

If `5^(x + 3) = (25)^(3x - 4)`, then the value of `x` is :


Options:
A .  `5/11`
B .  `11/5`
C .  `11/3`
D .  `13/5`
Answer: Option B

`5^(x + 3) = (25)^(3x - 4)`   `hArr  5^(x + 3) = (5^2)^(3x - 4)           hArr   5^(x + 3)    =  5^(2(3x-4))`

`hArr  5^(x + 3)  = 5^(6x - 8)     hArr x + 3 =   6x - 8         hArr  5x = 11         hArr     =   11/5`




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