(x-30)[500-10(x-40)]=8000
来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 00:33:51
(x-30)[500-10(x-40)]=8000(x-30)[500-10(x-40)]=8000(x-30)[500-10(x-40)]=8000(x-30)[500-10(x-40)]=8000
(x-30)[500-10(x-40)]=8000
(x-30)[500-10(x-40)]=8000
(x-30)[500-10(x-40)]=8000
(x-30)[500-10(x-40)]=8000
(x-30)(50-x+40)= 800
-(x-30)(x-90)= 800
x² - 120x + 2700 = -800
x² - 120x + 3500 = 0
(x-50)(x-70)= 0
x= 50 或 x= 70
(x-30)[500-10(x-40)]=8000
60%x+25=40 x+30%x=52 19-120%x=7 4分之3x-5%x=17.5 x-10%x=18 (1-25%)x=36 2x+30%x=9.2
解方程 40%x=12 (1+60%)x=24 (1-37.5%)x=10 2x+50%x=20 40%x+30%x=140 35%x-15%x=72
谁知道这道方程题如何做啊x-(40%x+10)-40%x=30不是x-(40%x+10)-40%x=30,是
300字读后感 2篇 俄把格式说一下吧:《xxxx》(写题目)主要内容:x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x(写那篇文章的主要内容)思考分析:x x x
2x(56-X)-10=30+X
30*x=45*(x-10)
4(X+5)+X=80 5X+10=3X+4(X+5)+X=80 5X+10=3X+40
(40+x-30)(600-10x)=10000,
x+(x+20)+(x-10)+70+x=540 .
x+2x+(x+10)=90,x=?
X/2/10+X/2/30-(40/60)=X/2/(10+30)
x+60%x=80 80%-30x=305 35%x=210 x+50%x=60 x-40%x=0x+60%x=8080%-30x=30535%x=210x+50%x=60x-40%x=0.36(1-80%)x=21么么哒!
计算(x*x+4x+5)/(x+2)-(x*x+6x+10)/(x+3)+1
y=(50-40+X)×(500-10X)当x=( ),y最大
求解一道方程:40%X+(40%X-10)+30=X
1/x(x+3)+1/(x+3)(x+6)+---+1/(x+27)(x+30)
(x+x)+(x-x)+(x/x)=11.2