To get rid of the -3 from the modulus your going to bring it over the equal sign
|2x+1|=3
To get rid of the modulus you square both sides.
![{ (|2x+1|) }^{2} = {3}^{2} \\ {(2x + 1)}^{2} = {3}^{2}](https://tex.z-dn.net/?f=%20%7B%20%28%7C2x%2B1%7C%29%20%7D%5E%7B2%7D%20%3D%20%20%20%7B3%7D%5E%7B2%7D%20%20%5C%5C%20%20%7B%282x%20%20%2B%201%29%7D%5E%7B2%7D%20%20%3D%20%20%7B3%7D%5E%7B2%7D%20)
![(2x + 1 + 3) (2x + 1 - 3) = 0](https://tex.z-dn.net/?f=%282x%20%2B%201%20%2B%203%29%20%282x%20%2B%201%20-%203%29%20%3D%200)
Postivite 3 solution is:
![2x + 1 + 3 = 0 \\ 2x + 4 = 0 \\ 2x = - 4 \\ x - 2](https://tex.z-dn.net/?f=2x%20%2B%201%20%2B%203%20%3D%200%20%5C%5C%202x%20%2B%204%20%3D%200%20%5C%5C%202x%20%3D%20%20-%204%20%5C%5C%20x%20-%202)
Negative 3 solution is
![2x + 1 - 3 = 0 \\ 2x - 2 = 0 \\ 2x = 2 \\ x = 1](https://tex.z-dn.net/?f=2x%20%2B%201%20%20-%203%20%3D%200%20%5C%5C%202x%20-%202%20%3D%200%20%5C%5C%202x%20%3D%202%20%5C%5C%20x%20%3D%201)
Therefore x is -2 and 1
???? Can you be more specific please
Answer:
B. cotangent
Step-by-step explanation:
Just took the test!!
Answer and Step-by-step explanation:
Answer is in picture.
We have to use the trig function Tangent, noted as tan.
Tan uses opposite over adjacent sides.
then, to get x by itself, you do
(tan^-1)
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Greetings! I hope this helps!
Answer:
1
Explanation:
7 = 7/1
9 = 9/1
6 = 6/1