SOLUTION: i am having trouble with trying to figure out how to graph y=x-1,y=-x+3 to get (2,1)

Question 420736: i am having trouble with trying to figure out how to graph y=x-1,y=-x+3 to get (2,1)
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
-1 x + 1 y = -1 .............1
x=0,y=-1 (0,-1)
y=0,x=1 (1,0)
1 x + 1 y = 3 .............2
x=0, y=3 (0,3)
y=0,x=3 (3,0)
Plot these points and draw the lines. The point of intersection is the solution.

The solution is (2,1)
CHECK by solving the equation

multiply (1)by -1
Multiply (2) by 1
1 x + -1 y = 1
1 x + 1 y = 3

Add the two equations

2 x = 4

/ 2

x = 2

plug value of x in (1)

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

RELATED QUESTIONS
I am having trouble trying to figure out how to solve (27-2/3)/(27-1/3) (answered by Alan3354)

I am having trouble with the problem right here attempting to figure it out. Graph:... (answered by Fombitz)

Hello, I am trying to figure out how to solve a system by the method of substitution. I... (answered by KMST)

I am having trouble trying to figure out how to expand (2+(-3))^5 using the binomial... (answered by stanbon)

Hey guys, I'm having a bit of trouble finding out a few things about the graph of y =... (answered by ccs2011)

I am having a lot of trouble with these problems: x=y^2-8y-1 x=(y+2)^2-4 we have (answered by stanbon)

I am having trouble with a function table. x Input y is the... (answered by drk,jim_thompson5910)

I am having so mush trouble trying to figure out first what to do with this problem, I... (answered by ewatrrr)

Hello. I am having trouble with graphing systems of equations. How would I being to... (answered by mananth)