New King James Version
So He said to them, “This kind can come out by nothing but prayer and fasting.”

King James Bible
And he said unto them, This kind can come forth by nothing, but by prayer and fasting.

American Standard Version
And he said unto them, This kind can come out by nothing, save by prayer.

Berean Study Bible
Jesus answered, “This kind cannot come out, except by prayer.”

Douay-Rheims Bible
And he said to them: This kind can go out by nothing, but by prayer and fasting.

English Revised Version
And he said unto them, This kind can come out by nothing, save by prayer.

World English Bible
He said to them, "This kind can come out by nothing, except by prayer and fasting."

Young's Literal Translation
And he said to them, 'This kind is able to come forth with nothing except with prayer and fasting.'

Mark 9:29 Additional Translations ...