violajohnson violajohnson
  • 08-06-2016
  • Mathematics
contestada

Solve the system using elimination.

5x + 8y = –29
7x – 2y = –67

Respuesta :

jkeslar
jkeslar jkeslar
  • 08-06-2016
7x-2y+-67
multiply both sides of the bottom by 4 and add                                            5x+8y=-29 
 28x-8y=268
 
  33x=-297
   x=-9 


5(-9) +8y= -29 
-45 +8y =-29 
8y= 16 
y=2
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