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19-05-2020
Mathematics

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Solve the logarthmic equation. 2 log3(x + 4) - log39 = 2

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MathPhys MathPhys

19-05-2020

Answer:

5

Step-by-step explanation:

2 log₃(x + 4) − log₃9 = 2

2 log₃(x + 4) − log₃3² = 2

2 log₃(x + 4) − 2 = 2

2 log₃(x + 4) = 4

log₃(x + 4) = 2

3^(log₃(x + 4)) = 3^2

x + 4 = 9

x = 5

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