Question

find the value of x
(2/5)2x+b = (125)2a-1​

Answer 1

$( \frac{2}{5} )2x + b = (125)2a - 1$

$\frac{4x}{5} + b = 250a - 1$

$\frac{4x}{5 } = 250a - 1 - b$

$4x = (250a - 1 - b )\times 5$

$x = \frac{(250a - 1 - b) \times 5}{4}$

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