This is a simple numeric expression and can be solved by adding 2+2:
[tex]2+2=4[/tex]Remember to always follow math rules that are:
[tex]+\text{ with + = + }[/tex][tex]-\text{ with + is -}[/tex]We can do another example:
[tex]2+5(2-6)\text{ +22 -4 = ?}[/tex][tex]2+5(-4)+18[/tex][tex]2-20+18=0[/tex]Parenthesis has always been the priority!