SOLUTION: Solve the system by elimination. 1) -3x+y=7 4x-2y=3 2) 2x-3y=7 4x-5y=3 Thank you please solve. :)

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: Solve the system by elimination. 1) -3x+y=7 4x-2y=3 2) 2x-3y=7 4x-5y=3 Thank you please solve. :)      Log On


   

Question 623630: Solve the system by elimination.
1) -3x+y=7
4x-2y=3

2) 2x-3y=7
4x-5y=3
Thank you please solve. :)
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,  

-6x+2y=14   | Multiplying (-3x+y = 7) by 2 to eliminate the y variable

 4x-2y=3 

    -2x = 17,  x = -17/2   and y+=+3%28-17%2F2%29+%2B+14%2F2++=+-37%2F2

 Ordered pair (-17/2, -37/2) is the solution for this sytem of equations



 -4x+6y= -14   | Multiplying (2x-3y = 7) by -2 to eliminate the x variable

  4x-5y= 3

       y = -11  and x+=+%285%2A-11+%2B3%29%2F4++=+-13 

 Ordered pair (-13, -11) is the solution for this sytem of equations