Algebraic Techniques, SM-Bank 129 A number \(b\) is tripled and \(5\) is subtracted. The result is then doubled. Write an algebraic expression and expand it to represent this information. (2 marks) Show Answers Only \(6b-10\) Show Worked Solution \(2(3b-5)\) \(=2\times 3b+2\times (-5)\) \(=6b-10\)