(x/2)-(x+1/3)=x(x-3/3)=1(x+1/2)-3=(x-1/4)-1/2
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(x/2)-(x+1/3)=x(x-3/3)=1(x+1/2)-3=(x-1/4)-1/2(x/2)-(x+1/3)=x(x-3/3)=1(x+1/2)-3=(x-1/4)-1/2(x/2)-(x+1
(x/2)-(x+1/3)=x(x-3/3)=1(x+1/2)-3=(x-1/4)-1/2
(x/2)-(x+1/3)=x
(x-3/3)=1
(x+1/2)-3=(x-1/4)-1/2
(x/2)-(x+1/3)=x(x-3/3)=1(x+1/2)-3=(x-1/4)-1/2
1) 3X-2(X+1)=6X
X-2=6X
5X=-2
X=-0.4
2) X-3=3
X=6
3) 2(X+1)-12=X-1-2
2X+2-12=X-3
X=12-3-2=7
很简单
三个方程分别乘以2、3、4(也就是几个分母)的最小公倍数
化简了,就简单多了
(x/2)-(x+1/3)=x
x/2-x-1/3=x
x/2-2x=1/3
两边乘以6
3x-12x=2
-9x=2
x=-2/9
(x-3/3)=1
x-1=1
x=2
(x+1/2)-3=(x-1/4)-1/2
x+1/2-3=x-1/4-1/2
?????
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