(完整版)五年级下册解方程专项练习题(三)
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五年级下册解方程专项练习题题(三)
(1)0.5+2X=9.8÷2 (2)2(2X+0.5)=9.8 (3)2500+x=6x (4)350=50+5X+X (5)X-0.8X=6
(6)12x-8x=4.8
(7) 7.5+2X=15
(8)1.2x=81.6
(9)x+5.6=9.4
(10)x-0.7x=3.6
(11)91÷x=1.3 (12) X+8.3=10.7
(13) 15x=3
(14) 3x-8=16
(15) 3x+9=27
(16) 18(x-2)=270
(17) 12x=300-4x
(18) 7x+5.3=7.4
(19) 3x÷5=4.8
(20) 0.5x+8=43
(21) 6x-3x=18
(22) 7(6.5+x)=87.5
(23) 0.273÷x=0.35
(24) 1.8x=0.972
(25) x÷0.75=90
(26) 0.1(x+6)=3.3×0.4
(27) (27.5-3.5)÷x=4
(28) 9x-40=5
(29) x÷5+9=21
(30) 48-27+5x=31
(31) 10.5+21+X=56 (32) x+2x+18=78
(33) (200-x)÷5=30
(34) (x-140)÷70=4 (35) 20-9x=2
(36) x+19.8=25.8 (37) 5.6x=33.6 (38) 9.8-x=3.8 (39) 75.6÷x=12.6 (40) 5x+12.5=32.5(41) 5(x+8)=100(42) x+3x+10=70 (43) 3(X+3)=50+3-X (44) 5x+15=60 (45) 3.5-5x=2 (46) 0.3×7+4x=12.5
(47) x÷1.5-1.25=0.75 (48) 4x-1.3×6=2.6 (49) 6x+12.8=15.8
(50) 150×2+3X=690 (51) 2x-20=4
(52) 3x+6=18
(53) 2(2.8+x)=10.4
(54) (x-3)÷2=7.5
(55) 13.2x+9x=33.3
(56) 3x=x+100
(57) x+4.8=7.2 (58) 6x+18=48 (59)3(x+2.1)=10.5
(60)12x-9x=8.7
(61)13(x+5)=169
(62) 2x-97=34.2
(63)3.4x-48=26.8
(64)42x+25x=134
(65)1.5(x+1.6)=3.6
(66)2(x-3)=5.8
(67)65x+7=137
(68) 9x+4×2.5=91
(69) 4.2 x+2.5x=134
(70) 10.5x+6.5x=51
(71) 89x-43x=9.2 (72)5x-45=100
(73) 1.2x-0.5x=6.3
(74) 23.4=2x
(75) 4x-x=48.6
(76) 4.5x-x=35
(77)X-5.7=2.15 (78)5X-2X=18
(79)3X+0.7=7
(80) 3.5×2= 4.2+x (81) 26×1.5= 2x+10 (82) 0.5×16―16×0.2=4x
(83) 13 9.25-X=0.403
(84) 18.9÷X=0. 3
(85) 23x=14x+27
(86) x+14x=75
(87)95-5x=80
(88)1.8 +6x=54 (89) 6.7x-60.3=6.7
(90) 9+4x=53
(91) 2x+8=16
(92) 20x-14x=24
(93) x+7x=8
(94) 9x-3x=6
(95) 6x-8=4
(96) 5x+x=9
(97) 8x-8=6x
(98) 5x-5=20
(99) 2x-6=12
(100) 7x+7=14
(101) 6x-6=0
(102) 5x+6=11
(103) 2x-8=10
(104) 2.5x-8=4 (105)4 x-1=7 (106)3x+7=28 (107) 3x-7=26 (108) 9x-x=16 (109) 24x+x=50 (110) 1.2x-8=4 (111) 3x-8=31 (112) 6x+6=12 (113) 3x-3=3 (114) 5x-3x=4 (115) 2x+16=19 (116) 5x+8=19
(117) 14-6x=8 (118) 15+6x=27 (119) 5-8x=4 (120) 7x+8=15 (121) 9-2x=1 (122) 4+5x=9 (123) 10-x=8 (124) 8x+9=17 (125) 9+6x=15 (126) x+9x=4+7 (127) 2x+9=17 (128) 8-4x=6 (129) 6x-8=28 (130) 7x-8=20 (131) x-56=1 (132) 8-7x=1 (133)x-30=12 (134) 6x-21=21 (135) 6x-3=6 (136) 9x=18 (137) 4x-18=14 (138) 5x+9=11 (139) 17-2x=11 (140) x+4+8=23