Verify That the Values of the Variables Listed Are Solutions

question 69

Multiple Choice

Verify that the values of the variables listed are solutions of the system of equations.
- $$\begin{array} { l } \left\{ \begin{array} { c } x + y + z = 6 \\x - y + 4 z = 14 \\5 x + y + z = 26\end{array} \right. \\x = 5 , y = - 1 , z = 2\end{array}$$

• A) not a solution
• B) solution

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