Math Solve for both systems - 4x - y = 31 and - 2x - y = 15 Asked by AnneS2 on 26 Aug 11:25 Last updated by anonymous on 27 Aug 15:04
- 2x - y = 15 - 2x - y +y= 15+y -2x= 15+y -2x-15= 15+y-15 -2x-15=y - 4x - y = 31 - 4x - (-2x-15) = 31 - 4x +2x+15 = 31 -2x+15=31 -2x+15-15=31-15 -2x=16 -2x/-2=16/-2 x=-8 -2x-15=y -2(-8)-15=y 16-15=y 1=y
