Systems of Linear Equations in Three Variables
1 Verify the Solution

Multiple Choice

Systems of Linear Equations in Three Variables
1 Verify the Solution of a System of Linear Equations in Three Variables
- $$\begin{array} { l } ( - 1,5,1 ) \\x + y + z = 5 \\x - y + 5 z = - 1 \\2 x + y + z = 4\end{array}$$

A) solution
B) not a solution