小数解方程求未知数专项练习
展开0.8x-4=1.6
12-2x=4
12×6+8x=120
2x+1.8×0.3=3.54
5x﹣1.3=0.2
4x+6x=26
1﹣0.2x=0.4
x-1.2=2.53
4x+6x=26
2.8x÷2=7
x+1.5x=13
x-3.5+4.5=12
9.4+x=95.5
9.4x=94
x+120=176
x-6=19
x÷6=15
x-54.5=100
7x-3x=7.2
2.4x+3.8×2=28.24
6x+10.8=40.8
1.2x÷2=60
16×0.5+3x=14
7x+7.2=10
18+1.5x=21
10x+85=310
2x+6.4=16.4
0.21x+0.63=4.2
7x÷3=63
x﹣9.8=7.7
2.1x+3.5x=11.2
4(x+2)=96
x-0.36x=16
5x÷2=10
7x-1.2=3.7
x+2.75=3.86
x+0.8x=3.6
1.5x+0.6×3=4.8
x+6x=65.1
4.8+4x=40
a ÷1.5=13.5
5+2.5x=62.5
(2x﹣6)÷2=24
5x+12×3=56
x-32.6=18
7x+25=60
x+3.67=8
2.4x=12
x÷0.8=12.5
3x÷2=5.4
16x+3.2=35.2
x-0.6x=12
65+13x=169
0.8x-7.5=0.5
x-0.7x=1.5
7x-0.9×5=1.8
0.4×2+0.2x=5
x-0.8=0.9
15-x=12
3x=12
x÷8=16
4.5+x=5.4
18÷x=90(需检验)
x+2.4=5.5
3.6x-0.7x=58
x-17.6﹦12.4
x÷0.6﹦3.5
*3×1.5+2x=11.5
*x+7-9 =39
4x-5×6=14
8x-3x=15
30×(x÷4)=60
72×5-3x=0
x-3.6=1.4
x+23-10=28
80x+2=3.2
1.3+3x=2.3
40x-3×4=8
2x+3x=6
12.5÷x=2.5
6x-12.8×3=0.06
x﹣6.8=20.2
15x+26x=123
8(x+73)=792
2.6x+0.6x=32
1+0.2x=2.4
2x÷3=6
7.8x+3.2x=12.1
7x﹣0.9×3=3.6
2x+2.5﹣7.8=2.7
18.5﹣2x=8.5
x–60%x=18
x+2.5×8=95
x﹣1.25=0.8
3.6×5+2x=23
5x﹣4.2x=8.8
0.8x=20.4
4x+4.8=5.6
20x÷2=360
12x﹣9x=8.7
3x=48
x-8=12
25+ x=55
x-0.1x=5
7x÷3=8.19
4x-0.5x=0.7
0.8x+1.6x=48
5x-3×11=42
x÷0.6=42
0.4x=4
1.3x+7.2=12.4
7.5x+x=10.2
2.9x÷5=0.58
x+18﹣25=43
15x﹣5×4=85
x+2.4﹣3=12.4
8x+2.3=18.3
3m-m=64
6x+7x=91
y+5y=72
6.9x-6.3x=4.2
4x+6=60
5y-0.6=2.4
x÷1.5=12.6
5(x-4.9)=10.5
3.4x-48=26.8
7x÷3=8.19
2x﹣13=39
13x﹣7.5x=3.4
3(x+2.1)=1.4
7x+26.8=72.3
4(x﹣3.2)=22.4
3x+9=24
4x﹣18×2=20
10.2﹣x=2
3x+5x=19.2
4x-52=36
3x+x=32
4y+y=45
8a-2a=36
6a-a=40
(40+5y)÷ 5 = 10
7y-2×3=2y
x﹣360=312
25x﹣75=125
m÷0.6=5.5
5.6+x=9.4
3.8x-x=0.56
3.6x÷2=2.16
6x-12.8×3=0.06
x-0.8x=6
2x+8x=4.8
9x=100-x
4x+6×0.5x=70
42+7x=70
8x-5=4
2.1x+3.9x=18.6
3x+5x=12
8x-16×4=8
7x+8x=90
7.5x-1.5×6=85.5
2(x-1.5)=11
1.6x+4.5=10.9
4x+3x=0.21
4.5x-3.5=4.6
(1.4+x)÷2=7
x-4.5=20.9
3.2x=25.6
5x+9=44
5.4x+6.6x=19.2
7x=8.4
2.1÷x=0.7
(100-3x)÷2=8
3(x+1.6)=9.6
5(x-1.2) = 9
0.6x-2×0.6=5.4
x-0.6x=3.6
2.5x+x=70
10x-x=4.5
7x+x=24.8
x÷8=4.5
8y-7=25
5m-1.8×2.5=3.5
3.4x﹣48=26.8
3.85+1.5x=6.1
13(x+5)=169
42x+25x=536
13(x+5)=169
2x+23×4=134
6.8x+2x=30.8
(300-2x)÷6=25
5x﹣3.7=4.8
6(y﹣1.2)=4.2
3x-0.5=5.8
4×6+4x=84
2+1.8-5x=3.6
2x÷2.3=4.5
6x+4x-11=2.9
7(x-1.2)=2.1
x+5x=72
5m-2m=24
3y+y=128
9n-n=56
4x-2x=6.8
4x+3x=49
(6.4+x)÷5=3.1
5x-4×12=22.5
5x-3x=3.2
6(x+4)=26
3x-4.2=7.8
12x+ 2×6 = 24
2.5(x -9)=10
6x+18=48
15x-45 = 90
(2x-12)×3=48
1.5x+2.5x=16
12×6+8x=120
3(x-2.1)=8.4
(2x+3)÷0.5=10
2x-0.7×5=2.1
6+0.7x=55
0.8(x-2)=6.4
x+4.6=8
5.4x-2x=6.8
3(x-1.5)=18
x﹣2.6=4.8
x÷5=7.5
x÷2.5=0.6
6x+0.8=12.8
(x-5)×6=0.18
5x-0.6x=22
6×4-5x=12.8
(x-3)÷3.2=4
4x÷1.2=0.5
2×(3.8+x)=8.4
15x-12x=3.6
3(2x+4.2)=21
2.4x-37=65
3x﹣0.3=0.9
12x-6.4×3=0.36
x÷1.1=17
12+x=23
3x=12.6 (检验)
51÷x=17(检验)
1.5x+2.6=15.2
4.5÷x=1.8
3x-0.8×6=1.5
x-0.86x=3.08
(x-1.3)÷6=4.2
(5+x)×0.4=32
x÷5.8=3.2
7×7-3x=40
5x+6x=99
40-9x=5
6(x-3)=24
3x-7.68=0.42
1.6x÷3=3.2
0.75x-0.5x=1
2.2x-0.5×2=10
8.5×1.2-x=6.6
13÷x=2.5
2x-0.8x-0.2=33.4
3(x-2.4)=8.4
2x+1.5x=17.5
2x+23×4=134
9(x+3.4)=75.6
0.72×3-7x=0.06
(x-6)÷7=14
x-0.3x=2.1
x+2.6=3.7
x÷9=36
7.2-x=3.8
x+0.9=5.4
x÷2.1=13
8x-5×12=4
17x+x+4=40
X-7.4=8
+X=
14X+25X=156
2X-0.6X=4.2
3.6÷x=7.2
8x÷5=42.8
2.8x+0.4=6
0.8(5+x)=32
7x-3.5x=9.1
5.6x-9.2×3=11.6
2.5(x-1.9)=5.5
4×2.3+2x=9.8
6.7x+2.2x=93.45
67.8-1.5x=34.2
x-1.2=7.4
3x+1.6=6.1
5×0.6+4x=7.8
3x÷2=15.6
4.5+2x=11.5
7x-48=15
x÷0.8=3.2
5.3x+4×1.5=59
8.5x+11.5x=10
1.2x+5×1.2=36
3x=27.9
5x+10.5=30
x+2.2x=2.96
9.8-2x=3.4
4.2(x-1.5)=29.4
7.9-2x=3.4
x+0.6x=7.2
8÷x=0.5
8x-4×7=42
x-0.9x=81.9
(0.3+x)×4=6.8
6x-7.2=9.6
9x-4.6x=15.4
14.5-x+12=18.4
4.2(x-2.4)=29.4
24-2x=2.8
x+0.5x=2.7
x+0.5x=4.2
4(x-1.9)=7.2
3x-4×6.5=7.6
12x-9x=8.7
x÷4.2=2
2x+23×4=134
3(x+2.1)=10.5
5x+6x=24.2
2.5x-2=5.5
2×(x+0.8)=8.4
※1.5×3+2x=11.5
x÷1.5=4
x-7.2+2.8=5
3.6x-2.8x=80
2x-2×0.3=8
7.5÷x-3=2
18×1.5-1.7x=13.4
4x+6x=26
48+2x=100
16x-4×12=80
(x+5.2)×2=18.2
17.8-2.5x=5.3
(x-4)÷7.5=20
6.3-x=2.3
13+x=28.5
2.4x=26.4
3.6-x=0.54
x÷6.5=1.6
△7.5÷x=3
3.2x-4.8=2.4
x+12=31
2.4÷x=3
6x﹣35=13
5x+9x=2.8
8x-3x=15
9x+4x=52+13(检验)
16.7x-10x=28+39(检验)
4x+7=23-4x
2(2x-5)=14
(127-4x)÷5=19
4x-3×9=25
0.5+4.5x=45.5
3x-2.4=x
8x-5x=30
0.9x-3×1.2=7.2
20x÷2=360
x÷27=3
x+7-9=34
5x-2.6=82.4
5.4x+6.6x=7.2
5.5×17.3+6.7×5.5
3.8+4.29+2.1+4.2
x÷1.44=0.4
3.85+1.5x=6.1
0.7x=4.2
4(0.3+x)=4.8
(10x-25)÷5=15
8+2x=13
5x+6x=24.2
0.2×2+2x=10
7y=4.9
0.7x+2.3=3.21
4x-5.2=1.8
3x÷5=18
6×7+2x=92
0.6x+0.3×4=4.2
(2.7+1.8)÷x=0.3
x+13=28.5
x-18=42
x-3.7=13(检验)
7.5+x=20(检验)
4÷x=8
x-3.5=7.5
2x-2.4=12.4
64+3x=184
4x÷6=8
5.6x+3.4x=2.7
x+0.8=7.6
6.2x﹣x=41.6
5.58÷x=3.1
4x﹣97=34.2
8x+25=65
5x+x=72
16÷4x=20
6.72+1.2x﹣2x=1.44
10x-3x=14
1.8+2x=3.5
8x-37=283
4×(12+x)=80
8x+9=17(检验)
(50-14x)÷2=11(检验)
52-x=15
(x+2.5)×4=15
8x-8×3=2x
3×1.5+6x=33
(x-12)÷4=4.5
8x-5x=27
5x-2+1.8=3.6
7(x-1.2)=2.1
y÷0.3=6.6
45 + a=67
9x+5=32
3.8x+8.2x=48
7x-1.2 = 3.7
x+2.75=3.86
x+0.8x=36
1.5x+0.6×3=4.8
x+6x=65.1
4.8+4x=40
2.5+x=24÷4
20x÷2=360
6.4-x=3.6
9.5x-5×3=13.5
12(8﹣x)÷3=2.8
*6.2x=0.2(x+6)
17.8+14x=26.2
3(x+5)=24
x﹣0.36x=20×0.8
3x+2.4×3=11.4
7.8+x=14.6
4x+14=50
3(x-1)=27(检验)
23x=4.6
36x+5x=123
3x+4 = 40
4x-2=10
4x-3×9=29
12x-9x=8.7
x÷3=78
x-23=38
15x+9.8=34.7
12x-9x=8.7
x÷8=0.4
2(x-3)=106
4.5+y=7.8
0.6x=12
x-18=57
45-x=40.5
90+6x=210
3.6x-20×0.5=26
2.3x-4.1=9.7
1.5x-x=5
18.5x-9.9x=1.72
5x-2.5x=0.1
7.4x+2.8x=30.6
y-5.6=6.7
3.5x-1.5x=10.8
5x+4×2=18
0.8x-5×2=2.56
0.7x+0.6x=52(检验)
4.5x-3.1x=28(检验)
4x+2.8=5.6
12x÷4=9
3x+4.5=31.2
7.1+x=34.3
x-785=215
x÷0.04=35.2
3x-0.5x=10
0.25x-1.8=4.2
2x+5×3=45
0.2x+x=6
23+8x=65
x﹣12=81
5.1+x=10.5
6x=4.2
x÷0.4=12.5
25+8x=65
2x+x=21
4x+8×1.2=36
2x-3.8+4.2=10
x÷0.26=10
1.4x+9.2x=53
4(x﹣0.7)=26
7x-2×9=80
13x-7.5x=18.7
(x+12)×6=108
A + 90=123
12x-8x=40
x+0.5x=6
6×5+2x=44
20x-50=50
(200-x)÷5=30
48-27+5x=31
9x﹣2.7=1.8
6x+1.4=25.4
3x+2x=12.5
0.75x-0.5x=1
3.2x+4=10.4
7.6+x=34.5
x÷0.4=35.2
6x-4x=20.2
7.5x+14=59
12(x+3.7)=144
5x-3×11=42
4x-54=14
7x+10x=102
5(x+20)=105
0.26×(5-x)=0.91
3×(x-4)=48
(8+x) ÷5=15
(x+5) ÷3=16
12x+8x=40
12x-8x=40
x+0.5x=6
5.9x﹣2.4x=7
2(x﹣3)=5.8
(100﹣3x)÷2=8
6.3÷x=7
3.5x+1.8=12.3
25x+5x=120
x-13=37
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