New wheels with stock tires

My name is Scott and I am new to XterraNation. I own a 2011 xterra S model black in color. The tire size is 265/70R16. I believe the stock wheel size is 16x7. I want to upgrade my wheels to American Racing ATX Cornice 195 size 16×9. I was wondering if I could have those wheels put on without having to do a lift kit, leveling kit or spacers put on? I was in a car accident a few years back and I have back and knee trouble so having the xterra lifted might pose a problem for me to climb in and out. So my question is can I replace my stock wheels with 16x9 without doing another modification? Thank you in advance.
 
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