Question

If(3/4)2x-2=81/256 find the value of x

Answer 1

$(\frac{3}{4} )2x - 2 = \frac{81}{256} \\ => (2x - 2) = \frac{81}{256} \times \frac{4}{3} \\ = > 2x = \frac{27}{64} + 2 \\ = > 2x = \frac{27 + 2 \times 64}{64} \\ = > 2x = \frac{155}{64} \\ = > x = \frac{155}{64 \times 2} \\ = > x = \frac{155}{128}$