解方程.列式(1)1/4x-1/12x=1/3 (2)x+1/2-x-1/3=1 (3)2x+1/3-(x-5)=3/2
来源:学生作业帮 编辑:作业帮 分类:数学作业 时间:2024/10/07 05:04:05
解方程.列式
(1)1/4x-1/12x=1/3 (2)x+1/2-x-1/3=1 (3)2x+1/3-(x-5)=3/2
(4)x+4/5-x+2/10=x-2/2 (5)2.4-x-4/2.5=3/5x (6) x-2/3-x-1/2=x+1
(1)1/4x-1/12x=1/3 (2)x+1/2-x-1/3=1 (3)2x+1/3-(x-5)=3/2
(4)x+4/5-x+2/10=x-2/2 (5)2.4-x-4/2.5=3/5x (6) x-2/3-x-1/2=x+1
(1)1/4x-1/12x=1/3
x/6=1/3
x=2
(2)(x+1)/2-(x-1)/3=1
3(x+1)-2(x-1)=6
3x+3-2x+2=6
x=1
(3)2x+1/3-(x-5)=3/2
2(2x+1)-6(x-5)=9
4x+2-6x+30=9
-2x=-23
x=23/2
(4)x+4/5-x+2/10=x-2/2
2(x+4)-(x+2)=5(x-2)
2x+8-x-2=5x-10
x-5x=-10-6
-4x=-16
x=4
(5)2.4-x-4/2.5=3/5x
12-2(x-4)=3x
12-2x+8=3x
-2x-3x=-20
-5x=-20
x=4
(6) x-2/3-x-1/2=x+1
2(x-2)-3(x-1)=6(x+1)
2x-4-3x+3=6x+6
-x-6x=6+1
-7x=7
x=-1
x/6=1/3
x=2
(2)(x+1)/2-(x-1)/3=1
3(x+1)-2(x-1)=6
3x+3-2x+2=6
x=1
(3)2x+1/3-(x-5)=3/2
2(2x+1)-6(x-5)=9
4x+2-6x+30=9
-2x=-23
x=23/2
(4)x+4/5-x+2/10=x-2/2
2(x+4)-(x+2)=5(x-2)
2x+8-x-2=5x-10
x-5x=-10-6
-4x=-16
x=4
(5)2.4-x-4/2.5=3/5x
12-2(x-4)=3x
12-2x+8=3x
-2x-3x=-20
-5x=-20
x=4
(6) x-2/3-x-1/2=x+1
2(x-2)-3(x-1)=6(x+1)
2x-4-3x+3=6x+6
-x-6x=6+1
-7x=7
x=-1
解方程x/(x-2)=2x/(x-3)+(1-x)/(x-5x+6)
解方程 x(2x-4)+3x(x-1)=5x(x-3)+8
解方程:2x+4x+6x...+100x=1-(x+3x+5x+...+99x)
解方程 x+2/x+1+x+8/x+7=x+6/x+5+x+4/x+3
解下列方程:5x+2/(x^2+x)=3/(x+1)
解方程 3x/x×x-1+x×x-1/3x=5/2
解下列方程..1.(x/x-5)=(x-2)/(x-3)2.(6x-1)/(3x+2)=(4x-7)/(2x-5)3.{
解方程:2x(x-1)-x(3x+2)=-x(x+2)-12
x^5+x^4 = (x^3-x)(x^2+x+1)+x^2+x
解方程(x+1/x+2)-(x+2/x+3)=(x+5/x+6)-(x+6/x+7)
解方程:x+2/x+1-x+3/x+2=x+6/x+5-x+7/x+6
解下列方程:3x-1+5x=7x+2-3x