`4^(x+1) = 5^(2x-3)`
Take log on both sides
`log (4^(x+1)) = log (5^(2x-3))`
`(x+1) log 4 = (2x-3)log5`
`0.6020(x+1) = (2x-3) 0.6990`
`x = 3.3912`
So the answer is x = 3.391
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