How do you solve $-2*e^(8-6n)=-81.4$ ?

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Answer 1 · 2017-11-16T12:35:32

Solution: $n ~~ 0.715$

$-2* e^(8-6n) = -81.4$ or

$e^(8-6n) = (-81.4)/-2 or e^(8-6n) = 40.7$

Taking natural log on both sides we get ,

$(8-6n) = ln (40.7) [ ln e^x = x]$

$8-6n= 3.71 or 6n = 8-3.71 or 6n=4.29$

$:. n= 4.29/6~~ 0.715 (3dp)$

Solution: $n ~~ 0.715$ [Ans]

How do you solve -2*e^(8-6n)=-81.4-2*e^(8-6n)=-81.4?