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guapka [62]
3 years ago
12

Log 15 (2x − 2) = log 15 (x+9)

Mathematics
1 answer:
notka56 [123]3 years ago
5 0

Answer:

x=11

Step-by-step explanation:

Given the equation

\log_{15}(2x-2)=\log_{15}(x+9)

Note that

2x-2>0\\ \\2x>2\\ \\x>1

and

x+9>0\\ \\x>-9

Combined, x>1

Solve the equation:

2x-2= x+9\\ \\2x-x=9+2\\ \\x=11

Since 11>1, this is the solution to the equation.

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