It's not that I don't think I can do it if I try, I'm just not interested.
It's not like I'm incapable of solving the problem, I just don't feel like doing it.
ーIt's not that I don't think I can do it if I try, I'm just not interested.
「やればできないわけじゃないが、やりたくないだけ」
it's not that ,,, で「…と言うわけではない」
I'm just not interested で「ただ興味がないだけ」
ーIt's not like I'm incapable of solving the problem, I just don't feel like doing it.
「その問題を解けないのではなくて、やりたくないだけ」
incapable of で「…ができなくて」
to solve the problem で「問題を解く」
I just don't feel like doing it で「ただそれをする気にならない」
ご参考まで！
I might be able to solve it but I don't want to do it.
I might be able to solve it but I don't feel like doing it.
ご質問ありがとうございます。
・I might be able to solve it but I don't want to do it.
＝「問題を解けるかも知れないですが、やりたくないです。」
（例文）I might be able to solve it but I don't want to do it. It will take a lot of time.
（訳）問題を解けるかも知れないですが、やりたくないです。時間がかかります。
・I might be able to solve it but I don't feel like doing it.
＝「問題を解けるかも知れないですが、やりたくない気分です。」
お役に立てれば嬉しいです。
Coco
カナダ 
日本 
