SOLVING MULTI STEP LOGARITHMIC EQUATIONS WORKSHEET

Solve the following logarithmic equations.

Problem 1 :

2 logx = log 2 + log (3x - 4)

Solution

Problem 2 :

log x + log(x - 1) = log(4x)

Solution

Problem 3 :

log(x + 25) - log3 (x - 1) = 3

Solution

Problem 4 :

log(x - 5) + log9 (x + 3) = 1

Solution

Problem 5 :

log x + log (x - 3) = 1

Solution

Problem 6 :

log(x - 2) + log2 (x + 1) = 2

Solution

Problem 7 :

ln x = -3

Solution

Problem 8 :

log(3x - 2) = 2

Solution

Answer Key

1)  x = 4 or x = 2

2)  x = 5

3)  x = 2

4)  x = 6

5)  x = 5

6)  x = 3

7)  x = e-3

8)  x = 34

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