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Alex
3 years ago
13

What is that first step in solving the equation 2x-1=3?

Mathematics
2 answers:
ddd [48]3 years ago
5 0

Answer:

subtract 1 then divide 2

Step-by-step explanation:

Crazy boy [7]3 years ago
5 0
+1 to both sides is step one
Then divide both sides by two to get x=2
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Which of the following is true regarding the solutions to the logarithmic equation below? 2 log Subscript 6 Baseline (x) = 2. lo
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Option c: x=6 is a true solution and x=-6 is an extraneous solution.

Explanation:

The equation is 2 \log _{6} x=2

Dividing both sides of the equation by 2, we get,

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Simplifying,

\log _{6}(x)=1

Since, we know by the logarithmic definition, if \log _{a}(b)=c, then b=a^{c}

Using this definition, we have,

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Now, let us verify if x=6 is the solution.

Substitute x=6 in the equation 2 \log _{6} x=2 to see whether both sides of the equation are true.

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2 \log _{6}(6)

Using the log rule, \log _{a}(a)=1

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Hence, both sides of the equation are equal.

Thus, x=6 is the true solution.

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3 years ago
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