AnnaDouglas AnnaDouglas

11-03-2015
Mathematics

Answered

which equation forms a pair of linear equations with 9x+12y=48 such that the system has no soulution?

Answer :

Panoyin Panoyin

11-03-2015

9x + 12y = 48
9x - 9x + 12y = 48 - 9x
12y = 48 - 9x
12 12
   y = 4 - 3/4x
9x + 12(4 - 3/4x) = 48
9x + 48 - 9x = 48
9x - 9x + 48 = 48
   0x + 48 = 48
      -48 -48
   0x = 0
      0    0
      x = 0
9(0) + 12y = 48
      0 + 12y = 48
      12y = 48
   12    12
      y = 4
      (x, y) = (0, 4)

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