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Nezavi [6.7K]
3 years ago
10

Solve the equation. ×-9=-6× + 5

Mathematics
2 answers:
Serggg [28]3 years ago
6 0
The answer is x=2. You add 6x to both sides to get 7x-9=5 then add 9 to both sides to get 7x=14. From there, you divide by 7 on both sides to get x=2.
kifflom [539]3 years ago
3 0
X - 9 = - 6x + 5

----------------------------------------------------------
Take away x from both sides :
----------------------------------------------------------
-9 = - 7x + 5

----------------------------------------------------------
Take away 5 from both sides :
----------------------------- -----------------------------
- 14 = - 7x

----------------------------------------------------------
Divide by -7 on both sides :
----------------------------------------------------------
x = 2

----------------------------------------------------------
Answer: x = 2
----------------------------------------------------------
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bixtya [17]

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And implies intersection

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Answer:

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Step-by-step explanation:

\textsf{initial energy level of electron}= 16.32 \times 10^{-19} \textsf{J}

\triangle E =\textsf{energy released}= 5.4 \times 10^{-19} \textsf{J}

A positive energy change means that the electron absorbs energy, while a negative energy change implies a release of energy from the electron.

Therefore, when an electron absorbs energy, the electron moves up to higher energy levels, and when an electron releases energy, it moves to lower energy levels.

\triangle E=E_2-E_1

\implies 5.4 \times 10^{-19} = 16.32 \times 10^{-19} -E_1

\implies E_1= 16.32 \times 10^{-19} -5.4 \times 10^{-19}

\implies E_1= 10.92 \times 10^{-19}

<u>Answer</u>:

The electron moved down to an energy level and has an energy of

10.92 \times 10^{-19} \textsf{J}

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