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SumitParakh

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Sep 8th, 2012
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  1. 18) -x - 1 < 7 and - 6x - 9 = 8
  2.  
  3. Add 1 B.S.-
  4. -x<8
  5. Divide by -1 B.S.--
  6. x>-8
  7.  
  8. AND
  9.  
  10. -6x-9>=8
  11. Add +9 B.S.--
  12. -6x>=17
  13. Divide by -6 B.S.--
  14. x<=-17/6
  15.  
  16.  
  17. 19) -3x + 8 = -5 or - 2x - 4 = -3
  18.  
  19. -3x+8<=-5
  20. Subtract -8 B.S.--
  21. -3x<=-13
  22. Divide by -3 B.S.---
  23. x>=13/3
  24.  
  25. AND
  26.  
  27. -2x-4>=-3
  28. Add 4 B.S.--
  29. -2x>=1
  30. Divide by -2 B.S.--
  31. x<=-1/2
  32.  
  33. 20) -6x - 7 < -3 and - 8x = 3
  34.  
  35. -6x-7<-3
  36. Add 7 B.S.--
  37. -6x<4
  38. Divide by -6 B.S.-
  39. x>-4/6
  40. i.e-
  41. x>-2/3
  42.  
  43. AND
  44.  
  45. -8x>=3
  46. Divide by -8 B.S.--
  47. x<=-3/8
  48.  
  49. 21) 9x - 9 = 9 and 5x > -1
  50.  
  51. 9x-9<=9
  52. Add +9 B.S.--
  53. 9x<=18
  54. Divide by 9 B.S.--
  55. x<=2
  56.  
  57. ANd
  58.  
  59. 5x>-1
  60. divide by 5 B.S.--
  61. x>-1/5
  62.  
  63. 22) -7x + 3 < -3 or - 8x = 2
  64.  
  65. -7x+3<-3
  66. Subtract -3 B.S.--
  67. -7x<-6
  68. Divide by -7 B.S.-
  69. x>6/7
  70.  
  71. OR
  72.  
  73. -8x>=2
  74. Divide by -8 B.S.--
  75. x<=-2/8
  76. x<=-1/4
  77.  
  78. 23) 3x - 5 < 4 and - x + 9 > 3
  79.  
  80. 3x-5<4
  81. Add 5 B.S.--
  82. 3x<9
  83. Divide by 3 B.S.--
  84. x<3
  85.  
  86. AND
  87.  
  88. -x+9>3
  89. Subtract -9 B.S.--
  90. -x>-6
  91. Divide by -1 B.S.---
  92. x<6
  93.  
  94. 24) -8x - 6 < 5 or 4x - 1 = 3
  95.  
  96. -8x-6<5
  97. Add 6 B.S.--
  98. -8x<11
  99. Divide by -8 B.S.--
  100. x>-11/8
  101.  
  102. OR
  103.  
  104. 4x-1>=3
  105. Add 1 B.S.--
  106. 4x>=4
  107. Divide by 4 B.S.--
  108. x>=1
  109.  
  110. 25) 9x + 3 = -5 or - 2x - 4 = 9
  111.  
  112. 9x+3<=-5
  113. Subtract -3 B.S.--
  114. 9x<=-8
  115. Divide by 9 B.S.--
  116. x<=-8/9
  117.  
  118. OR
  119.  
  120. -2x-4>=9
  121. Add 4 B.S.--
  122. -2x>=13
  123. Divide by -2 B.s.---
  124. x<=-13/2
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