1樓：李秉千
3x+5x=48 x=614x-8x=12 x=26*5+2x=44 x=720x-50=50 x=5
28+6x=88 x=10
32-22x=10 x=1
4y+2=6 y=1x+32=76 x=443x+6=18 x=416+8x=40 x=3
2x-8=8 x=8
4x-3*9=29 x=98x-3x=105 x=21x-6*5=42 x=72x+5=7 x=22x+3=10 x=7/212x-9x=9 x=3
6x+18=48 x=556x-50x=30 x=55x=15 x=378-5x=28 x=1032y-29=3 y=15x+5=15 x=2
89x-9=80 x=1
100-20x=20 x=455x-25x=60 x=276y-75=1 y=1
23y-23=23 y=2
4x-20=0 x=5 80y+20=100 y=1
53x-90=16 x=2
2x+9x=11 x=112y-12=24 y=380+5x=100 x=4
7x-8=6 x=2
65x+35=100 x=1
19y+y=40 y=225-5x=15 x=879y+y=80 y=142x+28x=140 x=23x-1=8 x=390y-90=90 y=2
80y-90=70 y=2
78y+2y=160 y=2
88-x=80 x=8
9-4x=1 x=2
20x=40 x=2
15y-35=100 x=951y-y=100 y=2
85y+1=-86 y=145x-50=40 x=2
10x+6=26 x=2
24:8x=1 x=3
8x+23=39 x=2 24:8x=1 x=38x+23=39 x=2
4x+9=21 x=3
6:2x=3 x=1
5x-3=2 x=1
6×+8=68 ×=10
2x=3+5 x=4
3x=x+1 x=1/2
x=2x-2 x=2
x=32+3 x=35
2x=1+4 x=5/2
2x=x+1 x=1
2x=5*6 x=15
10x=1 x=1/10
5x=10 x=2
6x=7 x=7/6
10x=10 x=1
10=x+1 x=9
10=2x+2 x=4
10=3x+1 x=3
13=4x+1 x=3
11=2x+1 x=5
16=3x+1 x=5
68=5x+23 x=9
21=6x-123 x=2811=7x+2 x=9/714=12x-34 x=421=4x+1 x=521=2x+1 x=10
34=3x+1 x=1148=5x+23 x=5
72=7x+2 x=102=12x-34 x=328=9x+1 x=3
29=9x+2 x=331=5x+1 x=6來自http://zhidao.baidu.
2樓：npc大佬
1. 2(x-2)-3(4x-1)=9(1-x)2x-4-12x+3=9-9x
x=-10
2. 11x+64-2x=100-9x
18x=36
x=23. 15-(8-5x)=7x+(4-3x)15-8+5x=7x+4-3x
x=-3
4. 3(x-7)-2[9-4(2-x)]=223x-21-2(9-8+4x)=22
3x-21-2-8x=22
-5x=55
x=-11
5. 2(x-2)+2=x+1
2x-4+2=x+1
x=36. 30x-10(10-x)=10030x-100+10x=100
40x=200
x=50
7. 4(x+2)=5(x-2)
4x+8=5x-10
x=18
8. 120-4(x+5)=28
120-4x-20=28
-4x=-72
x=18
9. 15x+854-65x=54
-50x=-800
x=16
10. 3(x-2)+1=x-(2x-1)3x-6+1=x-2x+1
4x=6
x=3/2
11. 11x+64-2x=100-9x18x=36
x=212. 14.59+x-25.31=0x=10.72
13. (x-6)×7=2x -2
7x-42=2x-2
5x=40
x=814. 3x+x=18
4x=18
x=9/2
15. 12.5-3x=6.5
3x=6
x=216. 1.2(x-0.6)=4.81.2x- 7.2=4.8
1.2x=12
x=10
17. x+12.5=3.5x
2.5x=12.5
x=518. 8x-22.8=1.2
8x=21.6
x=2.7
19. 2x=5x-3
3x=3
x=120. x+5=8x=3
3樓：today五彩繽紛
7(2x-1)-3(4x-1)=4(3x+2)-1;
(5y+1)+ (1-y)= (9y+1)+ (1-3y);
20%+(1-20%)(320-x)=320×40%2(x-2)+2=x+1
2(x-2)-3(4x-1)=9(1-x)x/3 -5 = (5-x)/2
2(x+1) /3=5(x+1) /6 -1(1/5)x +1 =(2x+1)/4
(5-2)/2 - (4+x)/3 =1
x/3 -1 = (1-x)/2
(x-2)/2 - (3x-2)/4 =-111x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=223/2[2/3(1/4x-1)-2]-x=22(x-2)-3(4x-1)=9(1-x)11x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=223/2[2/3(1/4x-1)-2]-x=22(x-2)+2=x+1
1.7(2x-1)-3(4x-1)=4(3x+2)-12.(5y+1)+ (1-y)= (9y+1)+ (1-3y)3.[ (- 2)-4 ]=x+2
4.20%+(1-20%)(320-x)=320×40%5.2(x-2)+2=x+1
6.2(x-2)-3(4x-1)=9(1-x)7.11x+64-2x=100-9x
8.15-(8-5x)=7x+(4-3x)9.3(x-7)-2[9-4(2-x)]=2210.3/2[2/3(1/4x-1)-2]-x=211.5x+1-2x=3x-2
12.3y-4=2y+1
13.87x*13=5
14.7z/93=41
15.15x+863-65x=54
16.58y*55=27489
17.2（x+2）+4=9
18.2(x+4)=10
19.3(x-5)=18
20.4x+8=2(x-1)
21.3(x+3)=9+x
22.6(x/2+1)=12
23.9(x+6)=63
24.2+x=2(x-1/2)
25.8x+3(1-x)=-2
26.7+x-2(x-1)=1
27.x/3 -5 = (5-x)/2
28.2(x+1) /3=5(x+1) /6 -129.(1/5)x +1 =(2x+1)/430.
(5-2)/2 - (4+x)/3 =115x-8(5x+1.5)=18*1.25+x3x+189=521
4y+119=22
3x*189=5
8z/6=458
3x+77=59
4y-6985=81
87x*13=5
7z/93=41
15x+863-65x=54
58y*55=27489
1. 2(x-2)-3(4x-1)=9(1-x)2. 11x+64-2x=100-9x
3. 15-(8-5x)=7x+(4-3x)4. 3(x-7)-2[9-4(2-x)]=225.
3/2[2/3(1/4x-1)-2]-x=26. 2(x-2)+2=x+1
7. 0.4(x-0.2)+1.5=0.7x-0.388. 30x-10(10-x)=100
9. 4(x+2)=5(x-2)
10. 120-4(x+5)=25
11. 15x+863-65x=54
12. 12.3(x-2)+1=x-(2x-1)13. 11x+64-2x=100-9x14. 14.59+x-25.31=0
15. x-48.32+78.51=8016. 820-16x=45.5×8
17. (x-6)×7=2x
18. 3x+x=18
19. 0.8+3.2=7.2
20. 12.5-3x=6.5
21. 1.2(x-0.64)=0.5422. x+12.5=3.5x
23. 8x-22.8=1.2
24. 1\ 50x+10=60
25. 2\ 60x-30=20
26. 3\ 3^20x+50=110
27. 4\ 2x=5x-3
28. 5\ 90=10+x
29. 6\ 90+20x=30
30. 7\ 691+3x=700
1 2x-10.3x=15
2 0.52x-(1-0.52)x=803 x/2+3x/2=7
4 3x+7=32-2x
5 3x+5(138-x)=540
6 3x-7(x-1)=3-2(x+3)7 18x+3x-3=18-2(2x-1)8 3(20-y)=6y-4(y-11)9 -(x/4-1)=5
10 3[4(5y-1)-8]=6
①14.59+x-25.31=0
x=10.72
②x-48.32+78.51=80
x=49.81
③820-16x=45.5×8
x=28.5
④(x-6)×7=2x
x=8.4
⑤3x+x=18
x=4.5
⑥0.8+3.2=7.2
x=5⑦12.5-3x=6.5
x=2⑧1.2(x-0.64)=0.54
x=1.09
⑨x+12.5=3.5x
x=5⑩8x-22.8=1.2x=3
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