1.) 5(2^3x) = 8

2.) 3^1-2x = 4^x

1) 5(2^3x) = 8

2^3x=8/5

3x=log2(8/5)=0.678

x=0.678/3=0.226

2) 3^1-2x = 4^x

3-2x=(2^2)^x

3-2x=2^(2x)

Input 2x=1 into the equation, it works.

so x=1/2

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