SOLUTION: Solve for x 4.2^x = (0.5)^x-2 and 8^-x = 2.4^x-1

Question 625450: Solve for x
4.2^x = (0.5)^x-2
and
8^-x = 2.4^x-1
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Solve for x
4.2^x = (0.5)^x-2
x*log(4.2) = (x-2)*log(0.5) = x*log(0.5) - 2log(0.5)
x*log(4.2) - x*log(0.5) = -2log(0.5)
x = -2log(0.5)/(log(4.2 - log(0.5))
Calculator work
-------------------
and
8^-x = 2.4^x-1
Do it like the 1st one.

RELATED QUESTIONS
solve 2^x-4^(1/(2+x))+8^x =... (answered by Vladdroid)

solve for x i) (3x-4)(x+1)=2 ii) x-2/x-1=5/x ,... (answered by mananth)

Solve for X: √(X+5)=X-1 (√(X+5))^2=(X-1)^2 X+5=X^2-2X+1 X^2-3X-4=0 (answered by josh_jordan)

Stuck and needs help with these math problems please help 1. Solve: x/3 = 3/x-8 2.... (answered by stanbon)

2 * 3^x = 5* 4^x-1 Solve for... (answered by lynnlo)

5= x-2/3+x+1/4 solve for... (answered by Alan3354)

2/x-4=1/x+5 solve for... (answered by josgarithmetic)

x/x-1 + 2/x-5=-4/(x-1)(x-5) solve the eqution for x (answered by guapa)

solve for x if [3 1 0 2 x 1 4 5 -2] =... (answered by Alan3354)

solve for x... (answered by user_dude2008)