求不等式x+7分之2+1大于3x=2分之2+2的非负整数解
问题描述：
求不等式x+7分之2+1大于3x=2分之2+2的非负整数解
答
2/(x+7)+1>2/(3x+2)+2,
2/(x+7)-2/(3x+2)-1>0,
[2(3x+2)-2(x+7)-(x+7)(3x+2)]/[(x+7)(3x+2)]>0,
(4x-10-3x^2-23x-14)/[(x+7)(3x+2)]>0,
(3x^2+19x+24)(x+7)(3x+2)