If you do that; in that case — a conjunction used to indicate the expected result if a preceding action or condition is met.
予定を早く決めて、そうすれば時間に余裕ができますよ。
Decide the schedule early; then you'll have more time.
貯金を始めなさい。そうすれば将来困りません。
Start saving money. If you do that, you won't be in trouble in the future.
道を確認して、そうすれば迷わないはずだ。
Check the route; if you do, you shouldn't get lost.
留学前に準備をしっかりしよう。そうすれば安心して出発できる。
Prepare well before studying abroad. If you do, you can leave with peace of mind.