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B
32
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C
52
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D
1
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Solution
The correct option is B32 We have, 4x+22x−1=3x+12+3x−12⇒2×22x−1+22x−1=3x−12×3+3x−12 ⇒22x−1(2+1)=3x−12(3+1)⇒22x−1×3=3x−12×4 ⇒22x−3=3x−32 ⇒(22)x−32=3x−32⇒4x−32=3x−32⇒x−32=0⇒x=32