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Digiron [165]
3 years ago
6

Solve this equation for x. Round your answer to the nearest hundredth. 1 = In(x + 7) ​

Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
8 0

Answer:

\displaystyle x \approx -4.28

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

<u>Algebra II</u>

  • Natural logarithms ln and Euler's number e

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

<em />\displaystyle 1 = ln(x + 7)<em />

<em />

<u>Step 2: Solve for </u><em><u>x</u></em>

  1. [Equality Property] e both sides:                                                                     \displaystyle e^1 = e^{ln(x + 7)}
  2. Simplify:                                                                                                             \displaystyle x + 7 = e
  3. [Equality Property] Isolate <em>x</em>:                                                                            \displaystyle x = e - 7
  4. Evaluate:                                                                                                            \displaystyle x = -4.28172
attashe74 [19]3 years ago
3 0

e^1 = x+7

e - 7 = x

x = -4.28

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