七年级上次计算题100道
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/19 11:26:49
![七年级上次计算题100道](/uploads/image/f/1164590-62-0.jpg?t=%E4%B8%83%E5%B9%B4%E7%BA%A7%E4%B8%8A%E6%AC%A1%E8%AE%A1%E7%AE%97%E9%A2%98100%E9%81%93)
1.4x+2=x+73x=5x=5/32.3-6x-4=2/3-6x=5/3x=-5/183.(4x+2)/6-(5x-1)/6-x+3=6x=-34.4x/(2x+6)+1=7/(2x+6)7-4x
1-1/3[x-(1+x)/3]=x/2-1/2[2x-(10-7x)/3]1-1/3[x-1/3+x/3]=x/2-1/2[2x-10/3+7x/3]1-1/3[4x/3-1/3]=x/2-1/2[
(1):(-8)-(-15)+(-9)-(-12)=-8+15-9+12=10(2):(-40)+29-(-15)-|-24|=-21+15-24=-30(3):(2/3)-(1/8)-(-1/3)+
23+(-73)(-84)+(-49)7+(-2.04)4.23+(-7.57)(-7/3)+(-7/6)9/4+(-3/2)3.75+(2.25)+5/4-3.75+(+5/4)+(-1.5)(17
2x+17=353x-64=1112+8x=520.8x-4.2=2.22x+5=103x-15=754x+4o=3203x+77=1225x-1.6=0.66x-4=2010x-0.6=2.4500
文库有哦
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6-2/9×34.8×5/4+1/45.6÷3/8-3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
1.3/7×49/9-4/32.8/9×15/36+1/273.12×5/6–2/9×34.8×5/4+1/45.6÷3/8–3/8÷66.4/7×5/9+3/7×5/97.5/2-(3/2+4/5)
4.58-(2.58+1.5)2.3÷0.25÷0.45.6÷3.52.7×0.990.125×3.2×0.253.72×9.9+3.72×0.10.99×0.81+0.99×0.19+0.991.3
23+(-73)(-84)+(-49)7+(-2.04)4.23+(-7.57)(-7/3)+(-7/6)9/4+(-3/2)3.75+(2.25)+5/4-3.75+(+5/4)+(-1.5)(17
你可以到百度文库中看看,能有一点帮助http://wenku.baidu.com/search?word=%D3%D0%C0%ED%CA%FD%BC%D3%BC%F5%B7%A8%BC%C6%CB%E
百度知道多是答题的人,求题目的话比较难,建议自己到百度文库找找看吧.
1.化简:①(2x4―5x2―4x+1)―(3x3―5x2―3x)②―〔―(―x+)〕―(x―1)③―3(x2―2xy+y2)+(2x2―xy―2y2)2.计算:75÷〔138÷(100-54)〕85
一元一次方程: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/
这样的问题可以到百度文库中去找,很方便的.
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+12(x-2)-3(
自己动手找一找就可以啦!
2x+5+5x=205y-8+4y=809x+5x=140
(-11.28)+(-3又5/11)+(+7.28)-(+4又6/11)=-11-0.28-3-5/11+7+0.28-4-6/11=-11+7-3-4+0.28-0.28-6/11-5/11=-11
我数学最不好了开学就八年级了,七年级的数学题百分之四十不会做.