Solve.
-$$\begin{array} { l }
x - y + z = 6 \
x + y + z = 8 \
x + y - z = - 2 \
( 2,1,5 )
\end{array}$$
A) $\mathrm { No }$
B) Yes

Question

Solve.
-$$\begin{array} { l } 
x - y + z = 6 \
x + y + z = 8 \
x + y - z = - 2 \
( 2,1,5 )
\end{array}$$
A) $\mathrm { No }$
B) Yes

Quizplus · Accepted Answer

To verify if the solution (2,1,5) is correct, we substitute x=2, y=1, and z=5 into each of the equations:1. $2 - 1 + 5 = 6$ which simplifies to $6 = 6$.2. $2 + 1 + 5 = 8$ which simplifies to $8 = 8$.3. $2 + 1 - 5 = -2$ which simplifies to $-2 = -2$.Since all three equations are satisfied by the solution (2,1,5), the answer is Yes.

Solve - x−y+z=6x+y+z=8x+y−z=−2(2,1,5)\begin{array} { l } x - y + z = 6 \\x + y + z = 8 \\x + y - z = - 2 \\( 2,1,5 )\end{array}x−y+z=6x+y+z=8x+y−z=−2(2,1,5)​

Solve
- $\begin{array} { l } x - y + z = 6 \\x + y + z = 8 \\x + y - z = - 2 \\( 2,1,5 )\end{array}$