100道七年级上数学计算题(合并同类项,如括号方程,去分母方-查字典问答网
分类选择

来自李厚福的问题

  100道七年级上数学计算题(合并同类项,如括号方程,去分母方程)去哦有急用,在前等候

  100道七年级上数学计算题(合并同类项,如括号方程,去分母方程)去哦有急用,在前等候

3回答
2019-12-27 19:01
我要回答
请先登录
何尔恭

  .3/7×49/9-4/3

  2.8/9×15/36+1/27

  3.12×5/6–2/9×3

  4.8×5/4+1/4

  5.6÷3/8–3/8÷6

  6.4/7×5/9+3/7×5/9

  7.5/2-(3/2+4/5)

  8.7/8+(1/8+1/9)

  9.9×5/6+5/6

  10.3/4×8/9-1/3

  0.12χ+1.8×0.9=7.2(9-5χ)×0.3=1.026.4χ-χ=28+4.4

  11.7×5/49+3/14

  12.6×(1/2+2/3)

  13.8×4/5+8×11/5

  14.31×5/6–5/6

  15.9/7-(2/7–10/21)

  16.5/9×18–14×2/7

  17.4/5×25/16+2/3×3/4

  18.14×8/7–5/6×12/15

  19.17/32–3/4×9/24

  20.3×2/9+1/3

  21.5/7×3/25+3/7

  22.3/14××2/3+1/6

  23.1/5×2/3+5/6

  24.9/22+1/11÷1/2

  25.5/3×11/5+4/3

  26.45×2/3+1/3×15

  27.7/19+12/19×5/6

  28.1/4+3/4÷2/3

  29.8/7×21/16+1/2

  30.101×1/5–1/5×21

  31.50+160÷40(58+370)÷(64-45)

  32.120-144÷18+35

  33.347+45×2-4160÷52

  34(58+37)÷(64-9×5)

  35.95÷(64-45)

  36.178-145÷5×6+42420+580-64×21÷28

  37.812-700÷(9+31×11)(136+64)×(65-345÷23)

  38.85+14×(14+208÷26)

  39.(284+16)×(512-8208÷18)

  40.120-36×4÷18+35

  41.(58+37)÷(64-9×5)

  42.(6.8-6.8×0.55)÷8.5

  43.0.12×4.8÷0.12×4.8

  44.(3.2×1.5+2.5)÷1.6(2)3.2×(1.5+2.5)÷1.6

  45.6-1.6÷4=5.38+7.85-5.37=

  46.7.2÷0.8-1.2×5=6-1.19×3-0.43=

  47.6.5×(4.8-1.2×4)=0.68×1.9+0.32×1.9

  48.10.15-10.75×0.4-5.7

  49.5.8×(3.87-0.13)+4.2×3.74

  50.32.52-(6+9.728÷3.2)×2.5

  1)66x+17y=3967

  25x+y=1200

  答案:x=48y=47

  (2)18x+23y=2303

  74x-y=1998

  答案:x=27y=79

  (3)44x+90y=7796

  44x+y=3476

  答案:x=79y=48

  (4)76x-66y=4082

  30x-y=2940

  答案:x=98y=51

  (5)67x+54y=8546

  71x-y=5680

  答案:x=80y=59

  (6)42x-95y=-1410

  21x-y=1575

  答案:x=75y=48

  (7)47x-40y=853

  34x-y=2006

  答案:x=59y=48

  (8)19x-32y=-1786

  75x+y=4950

  答案:x=66y=95

  (9)97x+24y=7202

  58x-y=2900

  答案:x=50y=98

  (10)42x+85y=6362

  63x-y=1638

  答案:x=26y=62

  (11)85x-92y=-2518

  27x-y=486

  答案:x=18y=44

  (12)79x+40y=2419

  56x-y=1176

  答案:x=21y=19

  (13)80x-87y=2156

  22x-y=880

  答案:x=40y=12

  (14)32x+62y=5134

  57x+y=2850

  答案:x=50y=57

  (15)83x-49y=82

  59x+y=2183

  答案:x=37y=61

  (16)91x+70y=5845

  95x-y=4275

  答案:x=45y=25

  (17)29x+44y=5281

  88x-y=3608

  答案:x=41y=93

  (18)25x-95y=-4355

  40x-y=2000

  答案:x=50y=59

  (19)54x+68y=3284

  78x+y=1404

  答案:x=18y=34

  (20)70x+13y=3520

  52x+y=2132

  答案:x=41y=50

  (21)48x-54y=-3186

  24x+y=1080

  答案:x=45y=99

  (22)36x+77y=7619

  47x-y=799

  答案:x=17y=91

  (23)13x-42y=-2717

2019-12-27 19:05:11
李厚福

  我要的是一元一次方程

2019-12-27 19:06:39
何尔恭

  1.2(x-2)-3(4x-1)=9(1-x)2.11x+64-2x=100-9x3.15-(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+17.0.4(x-0.2)+1.5=0.7x-0.388.30x-10(10-x)=1009.4(x+2)=5(x-2)10.120-4(x+5)=2511.15x+863-65x=5412.12.3(x-2)+1=x-(2x-1)13.11x+64-2x=100-9x14.14.59+x-25.31=015.x-48.32+78.51=8016.820-16x=45.5×817.(x-6)×7=2x18.3x+x=1819.0.8+3.2=7.220.12.5-3x=6.521.1.2(x-0.64)=0.5422.x+12.5=3.5x23.8x-22.8=1.224.150x+10=6025.260x-30=2026.33^20x+50=11027.42x=5x-328.590=10+x29.690+20x=3030.7691+3x=700

2019-12-27 19:10:01

最新问答

推荐文章

猜你喜欢

附近的人在看

推荐阅读

拓展阅读

  • 大家都在看
  • 小编推荐
  • 猜你喜欢
  •