how to simplify the inequality?

how to simplify the inequality as follow:

x+y>=2

x-y>=4

I want to get x>=3

Could you teach me which code I use would get this result? Thank you~

Answer 1

[Yongjian Feng]

Check this:

https://www.mathworks.com/matlabcentral/answers/561893-how-to-simplify-inequalities

[Ziwei Li]

Thank you for your help