解方程:【1】【2x-1】/3=【x+2】/4-1; 【x+x】/5 表示5分之x+x {这是大括号【这是小括号【2】【x-1】/2=2-【x+2】/5【3】3/2{2/3【x/4-1】-2}-x=2;【4】【4-6x】/0.01-6.5=【0.02-2x】/0.02-7.5
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/04 00:00:37
![解方程:【1】【2x-1】/3=【x+2】/4-1; 【x+x】/5 表示5分之x+x {这是大括号【这是小括号【2】【x-1】/2=2-【x+2】/5【3】3/2{2/3【x/4-1】-2}-x=2;【4】【4-6x】/0.01-6.5=【0.02-2x】/0.02-7.5](/uploads/image/z/3943415-47-5.jpg?t=%E8%A7%A3%E6%96%B9%E7%A8%8B%EF%BC%9A%E3%80%901%E3%80%91%E3%80%902x-1%E3%80%91%2F3%3D%E3%80%90x%2B2%E3%80%91%2F4-1%EF%BC%9B+%E3%80%90x%2Bx%E3%80%91%2F5+%E8%A1%A8%E7%A4%BA5%E5%88%86%E4%B9%8Bx%2Bx+%7B%E8%BF%99%E6%98%AF%E5%A4%A7%E6%8B%AC%E5%8F%B7%E3%80%90%E8%BF%99%E6%98%AF%E5%B0%8F%E6%8B%AC%E5%8F%B7%E3%80%902%E3%80%91%E3%80%90x-1%E3%80%91%2F2%3D2-%E3%80%90x%2B2%E3%80%91%2F5%E3%80%903%E3%80%913%2F2%7B2%2F3%E3%80%90x%2F4-1%E3%80%91-2%7D-x%3D2%EF%BC%9B%E3%80%904%E3%80%91%E3%80%904-6x%E3%80%91%2F0.01-6.5%3D%E3%80%900.02-2x%E3%80%91%2F0.02-7.5)
解方程:【1】【2x-1】/3=【x+2】/4-1; 【x+x】/5 表示5分之x+x {这是大括号【这是小括号【2】【x-1】/2=2-【x+2】/5【3】3/2{2/3【x/4-1】-2}-x=2;【4】【4-6x】/0.01-6.5=【0.02-2x】/0.02-7.5
解方程:【1】【2x-1】/3=【x+2】/4-1; 【x+x】/5 表示5分之x+x {这是大括号【这是小括号
【2】【x-1】/2=2-【x+2】/5
【3】3/2{2/3【x/4-1】-2}-x=2;
【4】【4-6x】/0.01-6.5=【0.02-2x】/0.02-7.5
解方程:【1】【2x-1】/3=【x+2】/4-1; 【x+x】/5 表示5分之x+x {这是大括号【这是小括号【2】【x-1】/2=2-【x+2】/5【3】3/2{2/3【x/4-1】-2}-x=2;【4】【4-6x】/0.01-6.5=【0.02-2x】/0.02-7.5
(1)(2x-1)/3=(x+2)/4 - 1,两边同时乘以12得: 4(2x-1)=3(x+2)-12,8x-4=3x+6-12,x= -2/5
(2)【x-1】/2=2-【x+2】/5,两边乘以10得:5(x+1)=20-2(x+2),5x+5=20-2x-4,x= 11/7
(3)3/2{2/3【x/4-1】-2}-x=2,(3/2 ) *(x/6-2/3-2)-x=2,(3/2 ) *(x/6-8/3)-x=2 ,
x/4- 4-x=2, x= -8
(4)【4-6x】/0.01-6.5=【0.02-2x】/0.02-7.5 ,【4-6x】/0.01=【0.02-2x】/0.02-7.5+6.5
【4-6x】/0.01=【0.02-2x】/0.02-1,两边乘以0.02得:2(4-6x)=(0.02-2x)-0.02
8-12x=0.02-2x-0.02,10x=8, x=4/5