(x+1)/3 - 1=(4-x)/2
移项,得:(x+1)/3 - 1 - (4-x)/2=0
通分,得:2(x+1)/6 - 6/6 - 3(4-x)/6=0
展开,得:(2x+2-6-12+3x)/6=0
合并同类项,得:(5x-16)/6=0
解得:x=16/5
(2y-1)/3=(y+2)/4 - 1
移项,得:(2y-1)/3 - (y+2)/4 + 1=0
通分,得:4(2y-1)/12 - 3(y+2)/12 + 12/12=0
展开,得:(8y-4-3y-6+12)/12=0
合并同类项,得:(5y+2)/12=0
解得:y=-2/5
4(y-1) - y=2(y + 1/2)
展开:4y - 4 - y=2y + 1
移项,得:4y - y - 2y=1 + 4
合并同类项,得:y=5