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Direction: Write an equation for each problem and then solve it. 6. Doren is 14 vears old. Doron's father is 5 years more than twice her age. Answer: 7. If thrice a number is increased by 15. the result is 39. What is the numbers Answer: B. Twice the sum of a number and four is thirty. What is the value of the number Answer: 9. Moon weights 30 kilograms. His father weighs 12 kg less than 3 times Maan's weight. Answer: 10. if eleven is added to the difference of a number and twenty-one, the sum is one hundred ten Ariswer:Step-by-step explanation: