equation. 1. The sum of three and two times a number is 18. 2.thirty times a number less three 3. the difference between eight and thrice a number plus eight 4. five less than a number is fifty 5. half a number decreased by ten 6. If the number is tripled, the result will be the same as when 28 is added to the number. What is the number? 7. Thea is twice as old as Vince. Ray is 2 years older than Thea. Write an algebraic equation showing that twice the sum of Thea and Vince's ages will result to Ray's age. 8. Sheila's weight is 6 kilograms more that Sarah's weight. Dee's weight is 3 kilograms less than Sarah's weight. Write an algebraic equation for the weight of the three girls having an average weight of 63 kilograms.​