Use Any Method to Solve the System of Linear Equations,find $$\left\{ \begin{array} { l } y = 4 x - 7 \\y = 7 x - 13\end{array} \right.$$

question 2

Multiple Choice

Use any method to solve the system of linear equations,find (x,y) .​ $$\left\{ \begin{array} { l } y = 4 x - 7 \\y = 7 x - 13\end{array} \right.$$ ​

• A)​​​(1,-2)
• B)​​(1,2)
• C)​(7,2)
• D)​(-2,1)
• E)(2,1)

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The absolute difference in the value of a financial instrument, currency or commodity's price from one period to another.

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Volatility

A statistical measure of the dispersion of returns for a given security or market index, indicating the degree of variation from the average.