Question 208905:  Solve the equation for x. 
 
e^(ax) = Ce^(bx), where a is not equal to b 
 Answer by nerdybill(7384)      (Show Source): 
You can  put this solution on YOUR website! Solve the equation for x. 
 
e^(ax) = Ce^(bx), where a is not equal to b 
. 
Applying "log rules": 
e^(ax) = Ce^(bx) 
Divide both sides by e^(bx): 
e^(ax)/e^(bx) = C 
Rewriting the left side: 
e^(ax-bx) = C 
Take the ln of both sides: 
ax-bx = ln(C) 
Factor the left: 
x(a-b) = ln(C) 
Dividing we get: 
x = ln(C)/(a-b) 
 
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