Question

Ai giỏi thì giải hộ mình câu này,mình tick cho

42-2.(32-2^x+1)=10

Answer 1

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Answer 2

\(42-2\left(3x-2^{x+1}\right)=10\)

\(2\left(32-2^{x+1}\right)=32\)

\(32-2^{x+1}=16\)

\(2^{x+1}=16\)

\(2^{x+1}=2^4\)

\(\Rightarrow x+1=4\)

\(\Rightarrow x=3\)

Vậy x = 3

Answer 3

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