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Olegator [25]
3 years ago
12

Solve 3x+9 so it has no solution.

Mathematics
1 answer:
Serjik [45]3 years ago
5 0

Answer:

x = -3

Step-by-step explanation:

<em>I hope you mean "no solution" as in 'equal to zero' because that's what I'm doing and what makes sense.</em>

<em>Start by setting the equation equal to zero.</em>

3x + 9 = 0

<em>Subtract the </em><em>9</em><em> from both sides to move it to the right side.</em>

3x = -9

<em>Divide the </em><em>3</em><em> from both sides to isolate the </em><em>x.</em>

x = -3

<em>We can check that </em><em>x = -3</em><em> is the correct answer by plugging it in and seeing if it equals </em><em>zero</em><em>.</em>

3(-3) + 9

-9 + 9

0

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Just multiply all the prime factors together.
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2 years ago
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jasenka [17]

Hello from MrBillDoesMath!

Answer:

The first choice, y = x^3 + 5


Discussion:

Let

y = (x-5) ^ (1/3)

To find the inverse, sway x and y and then solve for y:

x = ( y - 5 )^(1/3)         =>             cube both sides

x^3 = y - 5                  =>             add 5 to both sides

x^3 + 5 = y


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diamong [38]

Answer:

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Step-by-step explanation:

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Then we just need to replace x by 5 in both equations, and see if the values of y are the same

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y = 15 + 5 = 20

second function:

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