If 92x−127x+1=1, find the value of x...
If 92x−127x+1=1, find the value of x.
8
5
3
2
Correct answer is B
92x−127x+1=1
⟹92x−1=27x+1
(32)2x−1=(33)x+1
2(2x−1)=3(x+1)⟹4x−2=3x+3
4x−3x=3+2⟹x=5
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