Solve the given equations and select the correct option.
$I.$ $8x + 7y = 135$
$II.$ $5x + 6y = 99$
$III.$ $9y + 8z = 121$

  • A
    if $x < y = z$
  • B
    if $x \leq y < z$
  • C
    if $x < y > z$
  • D
    if $x = y > z$

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