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Answer:
i)
9 = 2x - 1
2x = 9+1
2x = 10
x = 5
ii)14 - 9 = 2x - 1
6 = 2x - 1
2x = 7
x = 7/2
iii)
2^x ÷ 2^-4 = 4^5
x + 4 = 10
x = 6
iv)
x = -5
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