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Verify That the Values of the Variables Listed Are Solutions {x+y=−1x−y=11\left\{ \begin{array} { l } x + y = - 1 \\x - y = 11 \\\end{array} \right.

Question 120

Multiple Choice

Verify that the values of the variables listed are solutions of the system of equations.
- {x+y=−1x−y=11\left\{ \begin{array} { l } x + y = - 1 \\x - y = 11 \\\end{array} \right.

x = 5 , y = - 6


A) solution
B) not a solution

Correct Answer:

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