Sistem persamaan linear dua variabel 3x+1/2 + 6y+3/5 = -12x+2+3y+6/2=3
penyelesaian?
a. x=8 dan y =-5
b. x=5 dan y =-8
c. x=-5 dan y =8
d. x= -8 dan y=-8
kasih cara ya. makasih :D

3x + 6y + 11/10 = -1
3x + 6y + 21/10 = 0

2x + 3y + 5 = 3
2x + 3y + 2 = 0
      2x + 3y = -2

3x + 6y + 21/10 = 2x + 3y + 2
    x + 3y + 1/10 = 0
               x + 3y = -1/10

2x + 3y = -20/10
  x + 3y = -1/10
______________ -
          x = -19/10
          y = (18/3)/10
             = 6/10 = 3/5

⇒ x = -19/10, y = 3/5

Have no idea where I lose the point. But I tried, and I wouldn't delete this just because the answer isn't any of the options. I'll learn something, maybe someone would tell me if I wasn't correct. Hope this answer would be appreciated, thanks.

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Semoga membantu.