Solve the following equations for x:(i) 72x+3=1(ii) 2x+1=4x-3(iii) 25x – InterviewSolution

1.	Solve the following equations for x:(i) 72x+3=1(ii) 2x+1=4x-3(iii) 25x+3=8x+3(iv) 42x=132(v) 4x-1×0.53-2x=18x(vi) 23x-7=256
Answer» Solve the following equations for x: (i) $7^{2 x + 3} = 1$ (ii) $2^{x + 1} = 4^{x - 3}$ (iii) $2^{5 x + 3} = 8^{x + 3}$ (iv) $4^{2 x} = \frac{1}{32}$ (v) $4^{x - 1} \times {(0.5)}^{3 - 2 x} = {(\frac{1}{8})}^{x}$ (vi) $2^{3 x - 7} = 256$

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