x/4+3=x/3-1/2
来源:百度知道 编辑:UC知道 时间:2024/05/21 07:40:36
x/4+3=x/3-1/2
1、两边同时乘以公分母 12
得,3x+36=4x-6
2、移项,合并同类项
得, -x=-42
3、所以 x=42
移项 得 x/12=7/2
所以x=42
3x/12+3=4x/12-1/2
1x/12=5/2
x=30
x/3-x/4=3+1/2
x/12=7/2
x=42
X/4+3=X/3-1/2
3X+36=4X-6 (两边乘以12)
42=X
X=42
解:移项得1/12X=(3+1/2)
得到X=42
已知x*x-3x+1=0,求x*x+1/x*x
(x-4)(x-2)-(x-1)(x+3),其中x=-2/5
[x+2]/[x+1]-[x+4]/[x+3]-[x+3]/[x+2]+]x+5]/[x+4]
x+x^2+x^3+x^4+x^5+...+x^12=500/12
1/(x^2+3x+2)+x^2/(x-4)=3/(x^2-x-2) +1
1/(X+1)X+1/(X+1)(X+2)+1/(X+2)(X+3)+1/(X+3)(X+4)=?
方程(x+1/x+2)+(x+2/x+3)=(x+3/x+4)+(x+4/x+5)的解
x+2/x+1-x+3/x+2=x+4/x+3-x+5/x+4
(x+2/x+1)+ (x+6/x+5)=(x+3/x+2)+(x+5/x+4)怎么解?
方程(x+2)/(x+1)-(x+4)/(x+3)=(x+6)/(x+5)-(x+8)/(x+7)