Question

不等式组{2x-7《5-2x，x+1>3+x分之2的整数解是_______

Answer 1

2x-7≤5-2x
4x≤12
x≤3

x+1>(3+x)/2
2x+2>3+x
x>1

所以1<x≤3
所以x=2,x=3

Answer 2

x/(x+2)-3/(2-x)=1-8/(x^2-4)
x/(x+2)+3/(x-2)=1-8/(x+2)(x-2)
两边乘(x+2)(x-2)
x(x-2)+3(x+2)=(x+2)(x-2)-8