北师大版五年级数学下册解方程 100 题(6 页)Good is good, but better carries it.精益求精，善益求善。解方程1. x = 2. ÷x = 3. 4x＋7.5＝13 4. x－0.6 x＝5 5. ÷x＝3.3 6. x =107. x÷= 8. χ＋χ= 9. 8×1－x =710. 20%χ－= 11. x - x =20 12. x = ×13. x -x = 24 14. 4 x + x = 9 15. + 2 x = 16. x -= 17. x + x =364 18. （1－）x =19. x =20× 20. x－ x =12 21. 7 x－=22. x－ x = 23. 4 x＋7.5＝13 24. 9.8-2 x =3.825. 26. x＋3x =24 27. x＋ x＝528. 29. x - x =20 30. x =3631. x = 32. x－ x＝12 33. 3 x－＝34. x = 35. x - x =15 36. x÷= 0.637. 15 x +6 x = 168 38. x - = 39. 2 x +5 = 4040. 3.5 x = 140 41. 20% x＝30 42. 5 x－3×=43. 5－ x = 44. 2 x - x = 45. 1.5 x =2.2546. x ÷= 47. x÷ = 48. x－30% x＝ 49. 8×（x－）= 50. （１－）x＝１４ 51. 37.5＋20% x＝69.5 52. x - x = 53. 4.2 × 3—3x = 5.1 54. 13.7—x = 5.29 55. x = 56. 20% x－= 57. x＋ x =58. 1÷2 x = 59. － x = 60. x÷=61. x－ x =15 62. x×20% = 20 63. x÷×=64. 4（4 x－1）=3（22－x） 65. 1.5 x =28.5 66. （0.5+ x）+ x=9.8÷267. x﹣2=40 68. 7×（2 x -6）=84 69. 8 x =4270. x÷×= 71. x ÷5 = 72. ÷x = 73. 74. 75. 1.5 x +6=3 x 76. x -= 77. 78. x + 2.5×8=95 79. 5×3-x÷2=8 80. －x =81. =150 82. = 83. =84. = 85. -= 86. =87. = 88. = 89. =90. = 91. 92. 93. 94. 95. 96. 97. 98. 99. x– 60% x =18 100. 40% x +30=80—…|'!|>》]》}]^、$,？。。$，：.！}?;…^《
