SOLUTION: Solve each system by graphing , if possible {3x - y = -3 {2x + y = -7

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Solve each system by graphing , if possible {3x - y = -3 {2x + y = -7      Log On


   



Question 805769: Solve each system by graphing , if possible
{3x - y = -3
{2x + y = -7

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
3 x + -1 y = -3 .............1
2 x 1 y = -7 .............2
Find the x & y intercept points by plugging x=0,y=0 in both equations.
equation I
when x= 0 y= 3 ,( 0 , 3 )
when y = 0 x= -3 ,( -1 , 0 )
Equation 2
when x= 0 y= -7 ( 0 , -7 )
when y = 0 x= -3.5 ( 0 , -3.5 )



You will observe that the point of intersection is -2,-3
The solution of the system is ( -2,-3 )