5^(X-8)=15 SOLVE FOR X

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5^(X-8)=15 SOLVE FOR X

Guest Apr 11, 2015

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Best Answer

+130516

+5

5^(X- 8)=15 take the log of both sides

log 5^(x - 8) = log 15 and by a log property, we can write

(x - 8) log 5 = log 15 divide both sides by log 5

x - 8 = log 15 / log 15 add 8 to both sides

x = log 15/log5 + 8 ≈ 9.68

CPhill Apr 11, 2015

1⁺⁰ Answers

+130516

+5

Best Answer

5^(X- 8)=15 take the log of both sides

log 5^(x - 8) = log 15 and by a log property, we can write

(x - 8) log 5 = log 15 divide both sides by log 5

x - 8 = log 15 / log 15 add 8 to both sides

x = log 15/log5 + 8 ≈ 9.68

CPhill Apr 11, 2015

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