Question

求解。。。

Answer 1

Answer 2

很简单，第一题两边同时乘以6再互换加减一下就可以得出辩卜X，下面两题方法也差不多，两边同时乘以或除以相茄正同的数值，再互换一下携纳穗基本可以解答出来

Answer 3

1.X=-6
2.Y=11/13
3.X=-4

Answer 4

1 -1/2x+1/6x=2→-1/3x=2→x=-6
2 1/知卖喊配差2y+1/2+1/3y+2/3=3-1/4y-3/4→5/搭野6y+7/6=9/4-1/4y→13/12y=13/12→y=1
3 3(x+2)-2(2x-1)=12→-x+10=2→x=-2

Answer 5

全都要过程么

追问

要

追答

1-1/2x=3-1/6x

1-3=1/2x-1/6x
-2=1/3x
x=-6
1/2(y+1)+1/3(y+2)=3-1/4(y+3)
(1/2)y+1/2+(1/3)y+2/3=3-(1/4y)-3/4
(5/6)y+7/6=(9/4)-(1/4y)
(5/6)y-(1/4y)=(9/4)-7/6
(7/12)y=13/12
y=13/7