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Chapter 5: Q. 50 (page 596)

Solve a System of Linear Equations by Graphing In the following exercises, solve the following systems of equations by graphing.

-x+2y=-2y=-x-1

Short Answer

Expert verified

The solution isx=0,y=-1.

Step by step solution

01

Given 

The given equations are:

-x+2y=-2y=-x-1

02

To determine 

We have to solve the given system of equations by graphing.

03

Calculation

The graphs are as follows:

From the graph, we see that the lines intersect at 0,-1. Hence the solution is x=0,y=-1.

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Stephanie left Riverside, California, driving her motorhome north on Interstate 15 towards Salt Lake City at a speed of 56 miles per hour. Half an hour later, Tina left Riverside in her car on the same route as Stephanie, driving 70 miles per hour. Solve the system 56s=70t,s=t+12

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