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小数方程专项练习(有答案)
(1)(x+0.55)×4=3.6
(8)6x﹣8.5×4=20
(9)36÷x=0.4
(2)2x÷8=0.8 (3)1.5×2+2x=5 (4)4.7x=1.9x+7 (5)12.6(x+4.8)÷2=63 (6)12.5+4x=21.7 (7)13.5x﹣8.5x=20 10)9.6x﹣x=43
11)3x﹣4×0.9=46.2
12)3.5x﹣4×7=42
13)x﹣0.9x=81.9
14)3.8+5x=12.3
15)4(0.3+x)=6.8
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(16)8x﹣1.6x=19.2
(25)x÷0.5=48.6×2
(17)x÷1.8=1.62
(18)22.5×2+5x=135, (19)1.4x+9.8=22.4, (20)2(x﹣3)=11.6, (21)68﹣4.4x=24, (22)1.6×8﹣5x=2.3 (23)2.5x÷20=16 (24)6.2x﹣x=41.6 26)5X﹣7.8=20.2,
27)2.5X﹣X=1.8,
28)(4.5+X)×2=13,
29)7x﹣2×9=80,
30)13x﹣7.5x=18.7,
31)(x+12)×6=108,
32)4x+3×0.7=6.5
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(33)2×(x﹣0.5)=1.6
(42)2x﹣2+1.8=3.6
(34)3x×2.34=4.914
(35)1.44÷x=0.4 (36)2x+6=12.5 (37)2.5x﹣x=1.2 (38)(4.5+x)×2=63 (39)2x﹣2.5×10=15 (40)3.85+1.5x=6.1 (41)13(x+2.5)=169 43)7(x﹣1.2)=3.57
44)2+1.8﹣2x=3.6
45)7x÷0.3=4.2
46)6x+4x﹣11=32.9
47)7(x﹣1.2)=2.87
48)2.4+3.4x=5.8
49)5(x﹣1.2)=35
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(50)2.5x+51=17×8
(59)2(x﹣3)=10.6
(51)2.4x+1.6x=2.2
(52)8(x﹣6.2)=41.6 (53)0.5(x﹣0.5)=7.5 (54)(9x+1.5+7x)÷5=5.1 (55)3x+7=29.5 (56)5x﹣2.8×1.2=1.04 (57)4x+6x=28.5 (58)2.38x+9.8=33.6 60)13x﹣x=14.4
61)68﹣1.1x=24
62)3(x+3.5)=21.6
63)3x﹣54=136.5
64)x﹣0.36x=3.2
65)4x+2.8×4=19.32
66)4x﹣5.2=5.2
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(67)4.8x+2.6x=3.7
(76)8x﹣4x=0.64
(68)3x+6.4×2=50.3
(69)2.7x﹣1.8=1.2x+2.7, (70)8﹣5(6x+0.7)=10x+0.5, (71)7÷x﹣0.7=1.3, (72)(5.9+x)÷3+16=30, (73)0.56×5﹣4x=0.4, (74)4(x﹣0.5)=9.6, (75)2×(x+1.7)=9.2 77)2x﹣0.24=0.12
78)(3.8﹣2)x=14.4
79)64﹣16X=56.8
80)8.6X﹣2.6X=36.6
82)6×4﹣0.6X=6.36
83)0.03×150﹣5x=3.2
84)45.3﹣4X=35.7,
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