Question

tìm x:

10+2(x-9)=4^16:4^14

giúp mình với hu hu hu

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Answer 1

10 + 2 ( x - 9 ) = \(4^{16}\) : \(4^{14}\)

10 + 2 ( x - 9) = \(4^2\)

10 + 2 ( x - 9) = 16

2 ( x - 9) = 16 - 10

2 ( x - 9) = 6

x - 9 = 6 : 2

x - 9 = 3

x = 3 + 9

x = 12

Answer 2

\(10+2\left(x-9\right)=4^{16}:4^{12}\)

\(10+2\left(x-9\right)=4^2\)

\(10+2\left(x-9\right)=16\)

\(2\left(x-9\right)=16-10\)

\(2\left(x-9\right)=6\)

\(x-9=6:2\)

\(x-9=3\)

\(x=9+3\)

\(\Rightarrow x=12\)