Ask Question
20 January, 14:07

Solve 3^x - 2 = 3^7

A. 2

B. 5

C. 7

D. 9

+1
Answers (1)
  1. 20 January, 16:22
    0
    C) 7

    Step-by-step explanation:

    3^x-2=2187

    Step 1: Add 2 to both sides.

    3^x-2+2=2187+2

    3^x=2189

    Step 2: Solve Exponent.

    3^x=2189

    log (3x) = log (2189) <
    x * (log (3)) = log (2189)

    x = log (2189) / log (3)

    x=7.000832
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Solve 3^x - 2 = 3^7 A. 2 B. 5 C. 7 D. 9 ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers