Algebraic Techniques, SM-Bank 130 A number \(\large x\) is doubled and 1 is added. The result is then multiplied by 5. Write an algebraic expression and expand it to represent this information. (2 marks) Show Answers Only \(10x+5\) Show Worked Solution \(5(2x+1)\) \(=5\times 2x+5\times 1\) \(=10x+5\)