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1、精选优质文档-倾情为你奉上 五年级下册解方程专项练习题题(三)专心-专注-专业(1)0.5+2X=9.82 (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)91x1.3 (12) X+8.3=10.7 (13) 15x3 (14) 3x816 (15) 3x+9=27 (16) 18(x-2)=270 (17) 12x=300-4x (18) 7x+5.3=7.4 (19) 3x5=4
2、.8 (20) 0.5x+8=43 (21) 6x-3x=18 (22) 7(6.5+x)=87.5 (23) 0.273x=0.35 (24) 1.8x=0.972 (25) x0.75=90 (26) 0.1(x+6)=3.30.4 (27) (27.5-3.5)x=4 (28) 9x-40=5 (29) x5+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.
3、8-x=3.8 (39) 75.6x=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) 0.37+4x=12.5 (47) x1.5-1.25=0.75 (48) 4x-1.36=2.6 (49) 6x+12.8=15.8 (50) 1502+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+
4、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+42.591 (69) 4.2 x+2.5x134 (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)
5、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) 3.52= 4.2+x (81) 261.5= 2x+10 (82) 0.516160.2=4x (83) 13 9.25X=0.403 (84) 18.9X=0. 3 (85) 23x=14x27 (86) x14x=75 (87)955x80 (88)1.8 +6x54 (89) 6.7x60.36.7 (90) 94x53 (91) 2x+8=16 (92) 20x-14x=24 (93) x+7x=8 (94) 9x-3x=6 (95) 6x-8
6、=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-
7、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
8、-2x=11 (140) x+4+8=23 (141) 7x-12=9 (142) X-5.7=2.3 (143) 5X-2X=18 (144) 3X +0.5=5 (145) 3.52= 4 x (146) 261.5= 2x (147) 0.516160.1=4x (148) 9.26X=0.26 (149) 36.9X=0.3 (150) X0.5=2.6 (151) 935x80 (152) 180-6x54 (153)84x40 (154) 0.2x0.53.7 (155) 9.4x0.4x16.2 (156) 924x20 (157) 7x6=1.4 (158) 16x34x=1
9、(159) 18x14x=12 (160) 3 x-4214=15 (161) 124x=56 (162) 2210x=12 (163) X+8.3=10.7 (164) 5x=30 (165) x-5.6=9.4 (166) x0.8=90 (167) 3x816 (168) 3x+9=27 (169) 5.3+7x=7.4 (170) 3x5=4.8(171) X-0.8X=6 (172) 12x+8x=4.8 (173) 7(x-2)=49 (174) 48+2x=36 (175) (x-2)3=7 (176) x5+9=21 (177)(300-x)5=30 (178) 91x 1.3 (179)12X+6=42 (180) 41-3x=17