求初一上整式计算题,愈多愈好,要像这样的：例如：ab+cd+2ab-5cd+cd『要答案』快吖!

求初一上整式计算题,愈多愈好,要像这样的：例如：ab+cd+2ab-5cd+cd『要答案』快吖!
求初一上整式计算题,愈多愈好,要像这样的：例如：ab+cd+2ab-5cd+cd
『要答案』快吖!

求初一上整式计算题,愈多愈好,要像这样的：例如：ab+cd+2ab-5cd+cd『要答案』快吖!
2x+17=35
3x-64=11
12+8x=52
0.8x-4.2=2.2
2x+5=10
3x-15=75
4x+4o=320
3x+77=122
5x-1.6=0.6
6x-4=20
10x-0.6=2.4
500-12x=140
1) 66x+17y=3967
25x+y=1200
答案：x=48 y=47
(2) 18x+23y=2303
74x-y=1998
答案：x=27 y=79
(3) 44x+90y=7796
44x+y=3476
答案：x=79 y=48
(4) 76x-66y=4082
30x-y=2940
答案：x=98 y=51
(5) 67x+54y=8546
71x-y=5680
答案：x=80 y=59
(6) 42x-95y=-1410
21x-y=1575
答案：x=75 y=48
(7) 47x-40y=853
34x-y=2006
答案：x=59 y=48
(8) 19x-32y=-1786
75x+y=4950
答案：x=66 y=95
(9) 97x+24y=7202
58x-y=2900
答案：x=50 y=98
(10) 42x+85y=6362
63x-y=1638
答案：x=26 y=62
(11) 85x-92y=-2518
27x-y=486
答案：x=18 y=44
(12) 79x+40y=2419
56x-y=1176
答案：x=21 y=19
(13) 80x-87y=2156
22x-y=880
答案：x=40 y=12
(14) 32x+62y=5134
57x+y=2850
答案：x=50 y=57
(15) 83x-49y=82
59x+y=2183
答案：x=37 y=61
(16) 91x+70y=5845
95x-y=4275
答案：x=45 y=25
(17) 29x+44y=5281
88x-y=3608
答案：x=41 y=93
(18) 25x-95y=-4355
40x-y=2000
答案：x=50 y=59
(19) 54x+68y=3284
78x+y=1404
答案：x=18 y=34
(20) 70x+13y=3520
52x+y=2132
答案：x=41 y=50
(21) 48x-54y=-3186
24x+y=1080
答案：x=45 y=99
(22) 36x+77y=7619
47x-y=799
答案：x=17 y=91
(23) 13x-42y=-2717
31x-y=1333
答案：x=43 y=78
(24) 28x+28y=3332
52x-y=4628
答案：x=89 y=30
(25) 62x-98y=-2564
46x-y=2024
答案：x=44 y=54
(26) 79x-76y=-4388
26x-y=832
答案：x=32 y=91
(27) 63x-40y=-821
42x-y=546
答案：x=13 y=41
(28) 69x-96y=-1209
42x+y=3822
答案：x=91 y=78
(29) 85x+67y=7338
11x+y=308
答案：x=28 y=74
(30) 78x+74y=12928
14x+y=1218
答案：x=87 y=83
(31) 39x+42y=5331
59x-y=5841
答案：x=99 y=35
(32) 29x+18y=1916
58x+y=2320
答案：x=40 y=42
(33) 40x+31y=6043
45x-y=3555
答案：x=79 y=93
(34) 47x+50y=8598
45x+y=3780
答案：x=84 y=93
(35) 45x-30y=-1455
29x-y=725
答案：x=25 y=86
(36) 11x-43y=-1361
47x+y=799
答案：x=17 y=36
(37) 33x+59y=3254
94x+y=1034
答案：x=11 y=49
(38) 89x-74y=-2735
68x+y=1020
答案：x=15 y=55
(39) 94x+71y=7517
78x+y=3822
答案：x=49 y=41
(40) 28x-62y=-4934
46x+y=552
答案：x=12 y=85
(41) 75x+43y=8472
17x-y=1394
答案：x=82 y=54
(42) 41x-38y=-1180
29x+y=1450
答案：x=50 y=85
(43) 22x-59y=824
63x+y=4725
答案：x=75 y=14
(44) 95x-56y=-401
90x+y=1530
答案：x=17 y=36
(45) 93x-52y=-852
29x+y=464
答案：x=16 y=45
(46) 93x+12y=8823
54x+y=4914
答案：x=91 y=30
(47) 21x-63y=84
20x+y=1880
答案：x=94 y=30
(48) 48x+93y=9756
38x-y=950
答案：x=25 y=92
(49) 99x-67y=4011
75x-y=5475
答案：x=73 y=48
(50) 83x+64y=9291
90x-y=3690
答案：x=41 y=92
3X+18=52 x=34/3
4Y+11=22 y=11/4
3X*9=5 x=5/27
8Z/6=48 z=36
3X+7=59 x=52/3
4Y-69=81 y=75/4
8X*6=5 x=5/48
7Z/9=4 y=63/7
15X+8-5X=54 x=4.6
5Y*5=27 y=27/40
8x+2=10 x=1
x*8=88 x=11
y-90=1 y=91
2x-98=2 x=50
6x*6=12 x=1/3
5-6=5x x=-1/5
6*x=42 x=7
55-y=33 y=22
11*3x=60 x=20/11
8-y=2 y=-6
1.x+2=3
2.x+32=33
3.x+6=18
4.4+x=47
5.19-x=8
6.98-x=13
7.66-x=10
8.5x=10
9.3x=27
10.7x=7
11.8x=8
12.9x=9
13.10x=100
14.66x=660
15.7x=49
16.2x=4
17.3x=9
18.4x=16
19.5x=25
20.6x=36
21.8x=64
22.9x=81
23.10x=100
24.11x=121
25.12x=144
26.13x=169
27.14x=196
28.15x=225
29.16x=256
30.17x=289
31.18x=324
32.19x=361
33.20x=400
31.21x=441
32.22x=484
33.111x=12321
34.1111x=1234321
35.11111x=123454321
36.111111x=12345654321
37.46/x=23
38.64/x=8
39.99/x=11
40.1235467564x=0
41.2x+1= -2+x
42.4x-3(20-x)=3
43.．-2(x-1)=4
44.3X+189=521
45.4Y+119=22 5
46.3X+77=59
47.4Y-6985=81
48.X=0.1
49.5X=55.5
50.Y=50-85
（-8）-（-1） =-7
45+（-30） =15
-1.5-（-11.5） =10
-0.25-（-0.5） =0.25
15-【1-（-20-4）】 =-10
-40-28-（-19）+（-24） =-73
22.54+（-4.4）+（-12.54）+4.4 =10
（2/3{三分只二 “/”是分数线}-1/2）-（1/3-5/6）=2/3
2.4-（-3/5）+（-3.1）+4/5 =0.7
（-6/13）+（-7/13）-（-2） =1
3/4-（-11/6）+（-7/3） =1/4
11+（-22）-3×（-11） =22
（-0.1）÷0.5×(-100) =20
(-2)的3次方-9 =-17
23÷[-9-(-4)] =-23/5
(3/4-7/8)÷(-7/8) =1/7
(-60)×(3/4+5/6)=-95
给我分吧

).1/2x+(-3/2x+1/3y^2)-(2x-2/3y^2),其中x=-1/3,y=2/3
=1/2x-3/2x+1/3y^2-2x+2/3y^2
=-3x+y^2
=-3*(-1/3)+(2/3)^2
=1+4/9
=13/9
(2).[(xy+2)(xy-2)-2x^2y^2+4]÷(xy),其中x=10,y=-1/25

全部展开

).1/2x+(-3/2x+1/3y^2)-(2x-2/3y^2),其中x=-1/3,y=2/3
=1/2x-3/2x+1/3y^2-2x+2/3y^2
=-3x+y^2
=-3*(-1/3)+(2/3)^2
=1+4/9
=13/9
(2).[(xy+2)(xy-2)-2x^2y^2+4]÷(xy),其中x=10,y=-1/25
=(x^2y^2-4-2x^2y^2+4)÷(xy)
=-x^2y^2÷(xy)
=-xy
=-10*(-1/25)
=2/5
(3).x(x+2y)-(x+1)^2+2x,其中x=1/25,y=-25
=x^2+2xy-x^2-2x-1+2x
=2xy-1
=2*(1/25)*(-25)-1
=-2-1
=-3
).(a^2+3)(a-2)-a(a^2-2a-2)
=a^3-2a^2+3a-6-a^3+2a^2+2a
=5a-6
(2).(3/4a^6x^2+6/5a^3x^4-0.9ax^3)÷3/5ax^2
=3/4a^6x^2÷3/5ax^2+6/5a^3x^4÷3/5ax^2-0.9ax^3÷3/5ax^2
=5/4a^5+2a^2x^2-3/2x
2.先化简,再求值:
[(5a+2b)(3a+2b)+(a-2b)(a+2b)]÷4a
=(15a^2+16ab+4b^2+a^2-4b^2)÷4a
=(16a^2+16ab)÷4a
=16a^2÷4a+16ab÷4a
=4a+4b
=4(a+b)
=4*(2-3)
=-4
).(x-1)-(2x+1)=-x-2
(2).3(x-2)+2(1-2x)=-x-4
(3).3(2b-3a)+3(2a-3b)=-3a-3b
(4).(3x^2-xy-2y^2)-2(X^2+xy-2y^2)=(3x-y)(x+2y)-(x+2y)(x-y)=3y(x+2y)
(5)7a^b-(-4a^b+5ab^2)-2(2a^2b-3ab^2)=7a^b+4a^b-5ab^-4a^b+6ab^=-a^b+ab^=ab(b-a)

收起

ab+cd+2ab-5cd+cd
=ab+2ab+(-5cd)+cd
=(1+2)ab+(-5+1)cd
=3ab+(-4)cd
=3ab-4cd