SOLUTION: please help me solve given that log 10 2x- log 10 (x-4)=1 find the value of x

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Question 1182948: please help me solve
given that log 10 2x- log 10 (x-4)=1
find the value of x
Found 2 solutions by robertb, MathTherapy:
Answer by robertb(5830)   (Show Source): You can put this solution on YOUR website!

<==>
<==> ==>
<==> x = 5x - 20 ==> 20 = 4x ==> x = 5.

By direct substitution you can check that indeed x = 5 is the solution to the original equation.
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

please help me solve
given that log 10 2x- log 10 (x-4)=1
find the value of x
 
                2x = 10(x - 4) ------- Cross-multiplying
                2x = 10x - 40
             - 10x = - 40
              - 8x = - 40

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