Is the ordered pair (3,−1)(3, -1) a solution to the system {2x+y=5x−2y=5\begin{cases}2x+y=5\\ x-2y=5\end{cases}?

5. Systems of Linear Equations

5. Systems of Linear Equations / Solving Systems of Linear Equations by Substitution / Problem 4

Problem 4

Is the ordered pair $open paren 3 comma negative 1 close paren$ a solution to the system ${\begin{matrix} 2 x + y = 5 \\ x - 2 y = 5 \end{matrix}$ ?

Yes