今天一定要解出来.如果可以请在帮忙自己出20到30到题目并加答案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+1 2(x-2)-3(4x-1)=9(1-x) 11x+64-2x=100-9x 15-(8-5x)=7x+(4-3x) 3(x-7)
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/29 03:21:47
![今天一定要解出来.如果可以请在帮忙自己出20到30到题目并加答案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+1 2(x-2)-3(4x-1)=9(1-x) 11x+64-2x=100-9x 15-(8-5x)=7x+(4-3x) 3(x-7)](/uploads/image/z/326610-18-0.jpg?t=%E4%BB%8A%E5%A4%A9%E4%B8%80%E5%AE%9A%E8%A6%81%E8%A7%A3%E5%87%BA%E6%9D%A5.%E5%A6%82%E6%9E%9C%E5%8F%AF%E4%BB%A5%E8%AF%B7%E5%9C%A8%E5%B8%AE%E5%BF%99%E8%87%AA%E5%B7%B1%E5%87%BA20%E5%88%B030%E5%88%B0%E9%A2%98%E7%9B%AE%E5%B9%B6%E5%8A%A0%E7%AD%94%E6%A1%887%282x-1%29-3%284x-1%29%3D4%283x%2B2%29-1%3B+%285y%2B1%29%2B+%281-y%29%3D+%289y%2B1%29%2B+%281-3y%29%3B+20%25%2B%281-20%25%29%28320-x%29%3D320%C3%9740%25+2%28x-2%29%2B2%3Dx%2B1+2%28x-2%29-3%284x-1%29%3D9%281-x%29+11x%2B64-2x%3D100-9x+15-%288-5x%29%3D7x%2B%284-3x%29+3%28x-7%29)
今天一定要解出来.如果可以请在帮忙自己出20到30到题目并加答案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+1 2(x-2)-3(4x-1)=9(1-x) 11x+64-2x=100-9x 15-(8-5x)=7x+(4-3x) 3(x-7)
今天一定要解出来.如果可以请在帮忙自己出20到30到题目并加答案
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+1
2(x-2)-3(4x-1)=9(1-x)
11x+64-2x=100-9x
15-(8-5x)=7x+(4-3x)
3(x-7)-2[9-4(2-x)]=22
3/2[2/3(1/4x-1)-2]-x=2
1 2x-10.3x=15
2 0.52x-(1-0.52)x=80
3 x/2+3x/2=7
4 3x+7=32-2x
5 3x+5(138-x)=540
6 3x-7(x-1)=3-2(x+3)
7 18x+3x-3=18-2(2x-1)
8 3(20-y)=6y-4(y-11)
9 -(x/4-1)=5
10 3[4(5y-1)-8]=6
10/3 (x/5+3/7)=9x/2
5/3(x+0.5)+2=3x-6
5x+2(2x/3+2)=2/3(x-6)+2
(2x-7)/2-(6x-5)/3=2x+3
(3x+2)/5-(x-6)=x/3
6x-(x/3+2)=2(x/5+5/2)-3
3(x/11-2)-5=2+3x/3
10/3(2x-6)=3/5
x/2-(x/3-2)=3
2/3(x+3)-3=5x/3
5/3(2x-5/3)=2x/5-8/9
25(x/3-x/2+2/5)-2=3/5(x-2/7)+4/9
今天一定要解出来.如果可以请在帮忙自己出20到30到题目并加答案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+1 2(x-2)-3(4x-1)=9(1-x) 11x+64-2x=100-9x 15-(8-5x)=7x+(4-3x) 3(x-7)
你上新浪爱问资料共享网下载赛
要过程么?
14x-7-12x+3=12x+8-1
2x-4=12x+7
-10x=11
x=-11/10(负十分之十一)
(5y+1)+(1-y)=(9y+1)+(1-3y)
5y+2-y=9y+2-3y
5y-9y+2-2-y+3y=0
-4y+2y=0
-2y=0
y=0
20%+80%(320-x)=3...
全部展开
14x-7-12x+3=12x+8-1
2x-4=12x+7
-10x=11
x=-11/10(负十分之十一)
(5y+1)+(1-y)=(9y+1)+(1-3y)
5y+2-y=9y+2-3y
5y-9y+2-2-y+3y=0
-4y+2y=0
-2y=0
y=0
20%+80%(320-x)=320×40%
20%+320(80%-40%)=80%x
1+320×2=4x
x=641/4
2(x-2)+2=x+1
4x-4+2=x+1
4x-3=x
x=1
太多了
收起