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Popular >

-12e^{-x}+8=7

Solution

- 12 e^{- x} + 8 = 7

Solution

x = ln (12)

+1

Solution steps

- 12 e^{- x} + 8 = 7

Move

8

to the right side

- 12 e^{- x} = - 1

Divide both sides by

- 12

e^{- x} = \frac{1}{12}

Apply exponent rules

- x = ln (\frac{1}{12})

Solve

- x = ln (\frac{1}{12}) : x = ln (12)

x = ln (12)

Popular Examples

5^{x} + 5^{- x} = 2

1-e^{(-x)/(50)}=0.25

1 - e^{\frac{- x}{50}} = 0.25

5^{2x}+5^{x+1}-14=0

5^{2 x} + 5^{x + 1} - 14 = 0

2^{x+3}-15=2^{1-x}

2^{x + 3} - 15 = 2^{1 - x}

2^{x+1}=3^{2x-1}

2^{x + 1} = 3^{2 x - 1}

Frequently Asked Questions (FAQ)

What is the answer to -12e^{-x}+8=7 ?
The answer to -12e^{-x}+8=7 is x=ln(12)