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jarptica [38.1K]
4 years ago
12

Log(-2a+9)=log(7-4a) please helpp!!

Mathematics
2 answers:
Grace [21]4 years ago
7 0
Verify each of the solutions by substituting them back into the original equation <span><span>log<span>(−2a+9)</span>=log<span>(7−4a)</span></span><span>log<span>(-2a+9)</span>=log<span>(7-4a)</span></span></span> and solving. In this case, all solutions were found to be valid.<span>a=−<span>1</span></span>
ivanzaharov [21]4 years ago
4 0
Assuming it's the same base log on either side you can just set the inside equal.

-2a + 9 = 7 - 4a
-2a + 4a = 7 - 9
2a = -2
a = -1
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Step-by-step explanation:

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4 years ago
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What is the answer to this somebody!!!
Galina-37 [17]

So with this, you'll be using a proportion to solve it. And here's what your equation will look like:


\frac{30}{x} =\frac{x}{24}


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For this, all you need to do is square root, and your answer is \sqrt{720} =x, however this answer can be simplified further.


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