5/3-5/3x+15/6=-7/2x+1
=10/6+15/6-5/3=-7/2+1
=25/6-1=5/3x-7/2x
=19/6=10/6x-21/6x
-x=19/6÷-11/6
×=57/33,
5/3(1-x+3/2)=-7/2x+1
5/3(5/2-x)+7/2x-1=0
25/6-5/3x+7/2x-1=0
11/6x+19/6=0
x=-19/11
解方程
3/5(1—x+2/3)=-2/7x+1
3/5(5/3—x)=-2/7x+1
1-3/5x=-2/7x+1
-11/35x=0
x=0