Chapter 10.6, Problem 56CCR

To determine

To solve: The given system algebraically.

Answer to Problem 56CCR

  $(x,y)=(5,-1)$ .

Explanation of Solution

Given information: The given system is: $\begin{array}{l}x+y=4\\ y=-1\end{array}$

Calculation:

Putting $y=-1$ in $x+y=4$ ,

  $\begin{array}{l}x+(-1)=4\\ \Rightarrow x-1=4\\ \Rightarrow x=5\end{array}$

So, $x=5,y=-1$ .

Thus, $(x,y)=(5,-1)$ is the solution of the given system.