Answer
\[\left\{ \left( 3,-1 \right) \right\}\]
Work Step by Step
Multiply the first equation by 5 and add both the equations as follows:
\[\begin{align}
& 15x+5y+2x-5y=40+11 \\
& 17x=51 \\
& x=\frac{51}{17} \\
& x=3
\end{align}\]
Substitute the value of \[x=3\]in the first equation and solve
\[\begin{align}
& 3x+y=8 \\
& 3\left( 3 \right)+y=8 \\
& y=8-9 \\
& y=-1
\end{align}\]
Hence, the value of x is 3 and y is −1.