Question

Solving Exponential and Logarithmic Equation In exercise,solve for x or t.See example 5 and 6.

2e -x+1 - 5 = 9

Answer 1

x = -0.95

Explanation:

2e^-x+1 -5 = 9

2e^-x+1 = 9+5 = 14

e^-x+1 = 14/2 = 7

e^-x+1 =7

-x+1 = In 7 = 1.95

-x+1 = 1.95

x = 1 - 1.95 = -0.95