SOLUTION: I would love it if you would tell me I'm doing this right, however, if I am not please help me to see what I am doing wrong. Solve the linear equation by graphing 2x-y=5

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: I would love it if you would tell me I'm doing this right, however, if I am not please help me to see what I am doing wrong. Solve the linear equation by graphing 2x-y=5       Log On


   



Question 162404: I would love it if you would tell me I'm doing this right, however, if I am not please help me to see what I am doing wrong.
Solve the linear equation by graphing
2x-y=5 3x+y=5
y=-2x+5 y=3x-5
my answer: 2,1

Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the linear equation by graphing
2x-y=5 3x+y=5
y=-2x+5 y=3x-5
:
the 1st equation:
2x - y = 5
-y = -2x + 5
we must have the coefficient of y to be positive 1, multiply the equation by -1
y = 2x - 5
:
:
The 2nd equation
3x + y = 5
y = -3x + 5
:
you must change the signs when you move a term from one side to the other.
:
Graphing these:
+graph%28+300%2C+200%2C+-2%2C+5%2C+-6%2C+6%2C+2x-5%2C+-3x%2B5%29+
You can see the solution is: 2,-1