if 2^x+1 - 2^x = 8 then what is the value of x
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Step-by-step explanation:
2ˣ⁺¹ - 2ˣ = 8
=> 2ˣ · 2¹ - 2ˣ = 8
=> 2ˣ [2 - 1] = 8
=> 2ˣ * 1 = 8
=> 2ˣ = 2³
=> x = 3
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