Following are a number of back-translations as well as a sample translation for translators of Isaiah 55:7:

• Kupsabiny: “Let the bad people leave their ways/habits
  and let the sinners leave their thoughts.
  Let them return to God so he can have mercy on them.
  Let those return to where our God is,
  because he will forgive them completely.” (Source: Kupsabiny Back Translation)
• Newari: “Let Wicked people [are to abandon] their own way
  and ungodly people are to abandon their own thoughts.
  And Let them return to the LORD [and] he will have mercy on them.
  Let them turn toward our God and he will pardon them completely.” (Source: Newari Back Translation)
• Hiligaynon: “The wicked-ones will- now -leave their wicked ways and will- now -change their wicked thoughts. They will- now -return to the LORD our (excl.) God for he will-have-mercy on them and will-be-forgiven.” (Source: Hiligaynon Back Translation)