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-Dominant- [34]
4 years ago
12

What is: 5x + x - 3 = 9

Mathematics
2 answers:
Allisa [31]4 years ago
8 0

5x+x-3=9

6x-3=9

cancel out 3 3+3 9+3

6x=12 divide six by 6 and by 12 too.

x=12/6=2

x=2

Tcecarenko [31]4 years ago
3 0
It is 6x-3=9
Then 6x=12
Plus X=2
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<h3>How to find the tangent of an angle?</h3>
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Researching the problem in the internet, it is found that for the <em>right triangle</em> in this problem:

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Applying the Pythagorean Theorem, we have that:

6^2 + x^2 = 11^2

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Considering that the tangent is the length of the opposite leg divided by the length of the adjacent leg, we have that:

\tan{F} = \frac{6}{\sqrt{85}} \times \frac{\sqrt{85}}{\sqrt{85}} = \frac{6\sqrt{85}}{85}

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