### Home > CCA > Chapter 5 > Lesson 5.1.1 > Problem5-7

5-7.

Solve the following systems of equations algebraically. Then graph each system to confirm your solution. Graphing Calculator (Desmos). Homework Help ✎

1. $x+y=3$
$x=3y-5$

• Replace x with 3y − 5.

• Solve for y.

• Solve for x.

1. $x-y=-5$
$y=-2x-4$

• Replace y with −2x − 4.

• Solve for x.

• Solve for y.

In the eTool below type points into the tables to explore where the two graphs intersect.
Click on the link at right to access the Desmos calculator: Graphing Calculator (Desmos)