find x, if | 1 2x 4x | | 1 4. 16 | | 1. 1. 1. | =0
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4
2x−1
−16
x−1
=348
⇒4
2x−1
−4
2(x−1)
=384
⇒4
2x−1
−4
2x−2
=384
⇒4
2x−1
[1−1/4]=384
⇒4
2x−1
(
4
3
)=384
⇒4
2x−1
=
3
384×4
⇒4
2x−1
=128×4
⇒4
2x−1
=512
⇒4
2x−1
=2
9
⇒2
2(2x−1)
=2
9
⇒4x−2=9 [Comparing exponents]
⇒4x=11
⇒x=
4
11
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