exam Maths Puzzle Numerical Ability

I am new to this subject and have found myself in over my head. I am required to evaluate each of the functions below at x = 1, 2, 4, 8, and 16. Plot the graph of each function. T

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v-4(4-v)=2(2v-1) this is what i tried
16-5v=4v-1
5v=4v-17 now it get lost please someone help
ln(x-3)=ln(x)+3