初一上整式計算題

時間 2022-03-11 16:47:36

1樓:匿名使用者

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=1234565432137.46/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) =-7322.54+(-4.4)+(-12.

54)+4.4 =10(2/3-1/2)-(1/3-5/6)=2/32.4-(-3/5)+(-3.

1)+4/5 =0.7(-6/13)+(-7/13)-(-2) =13/4-(-11/6)+(-7/3) =1/411+(-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

給我分吧

2樓:匿名使用者

解:ab+cd+2ab-5cd+cd

=ab+2ab+(-5cd)+cd

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

=3ab+(-4)cd

=3ab-4cd

3樓:尊長九天

).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.先化簡,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)

初一的簡單計算題,初一數學簡便計算題

報告 樓上第二題答 錯了 1.2x y 2y 3x 2y x 2x y 2y 3x 2y x 2x y 2.x 2y 4 x 2y 2 x 2y 3 x 2y 3 x 2y 7 x 2y 3 x 4xy 4y 7x 14y 3x 12xy 12y 7x 14y 1 2x y 2y 3x 2y x 2...

初一數學上冊計算題100道,初一上冊100道數學計算題及答案。

純風諾亞 1 1 2 3 2 6 5 1 4 3 3 1 2 1 1 4 1 10 1 2 4 1 7 6 2 1 2 50 2 5 1 17 8 2 4 3 3 50 2 0.1 1 1 3 1 0.5 3 2 1 9 101 1 1 0.5 4 8 2 8 2 55 7 99 87 1 3 1 ...

初一科學計算題,科學初一計算題及答案

1 說錯了 431km h 119.72m s 根本沒有達到聲音在空氣中的傳播速度 2 v平均 s總 t總 30000m 450s 66.67m s 240km h 計算過程中單位要統一 3 要死車廂懸浮,軌道必須對車提供乙個豎直向上的支援力 該力的大小與重力相等,根據g mg 計算出重力 2 10...

初一數學計算題

旅程的小店 額 太多啦 那有時間幫你回答,建議分幾次 一次20道最好 1 15 6 3 1 2 2 1 4 1 2 1 6 24 3 5 14 3 7 2 3 14 4 2 3 1 5 1 1 3 5 3.75 2.25 5 4 6 3.75 5 4 1.5 7 17 4 10 3 13 3 11 ...

初一計算題200道

有理數練習 練習一 b級 一 計算題 1 23 73 2 84 49 3 7 2.04 4 4.23 7.57 5 7 3 7 6 6 9 4 3 2 7 3.75 2.25 5 4 8 3.75 5 4 1.5 二 用簡便方法計算 1 17 4 10 3 13 3 11 3 2 1.8 0.2 1...