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小学数学解方程练习50题
(1)18-23+2x=31 (2)11.4+x+26=69 (3)2x+3x+28=108 (4)2(x+5)=60-x+4
(5) 2x+35=70
(9) x-1.8X=6
(13)8.5-2x=13
(17)x+2.3=10.2
(6)2(3x+x+0.5)=10 (10)12x-8x=6.6 14)1.2x=61.6 18)5x+2.1=8.4 (7)250+x=2x (11)11(x-2)=121 (15)x+5.6=9.4 (19)3x=14
(8)3200=450+4X+X 12)12x=300-4x (16)x-0.7x=4.27 (20)5x-7=26 ( ( (
(21) 4(x-2)=3x+1 (22)3x+9=30 (23)70-5x=38 (24)2(x-3)=1.8
(25) 23(x+5)=300 (26)15x+7=42 (27)2x-8.75=2.15 (28)7x-3x=18
(29)3x+0.7=5.5
(33)23x+45x=136
(37)26x-17x=34
(30)33x-19x=14 34)3.5(x+2)=3.6 38)25x-15=80 (31)5x-97.8=34.2 (35)2.2 x+6.5x=175 (39)7.2x-1.5x=11.4
32)21.4x-18=16.8 36)10.5x+6.5x=85 (40)21.8=3x-56.2 ( ( ( (
(41)5x-x=48.6 (42)10.5x-x=28.5 (43)26.2x+9x=704 (44)5x=2x+102
(45)x+3.8x=14.4
(49)2x-81=34.2
46)5(x+1.2)=10.5 50)5(x+1.8)=45
47)12x-9x=17.7 48)13(x+5)=125 ( ( ( (
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