expression
this one; with this; in this way
Used when presenting a choice or solution, often implying 'if it's this one, then it's good/acceptable'. Combines これ (this) with the conditional なら (if).
See also: なら
これなら大丈夫だと思う。
I think this one will be fine.
これなら簡単にできるよ。
With this, you can do it easily.