해법
해법
솔루션 단계
Translate the problem into an equation:
해결 대상
Kevin's age 찾다 :
인기 있는 예
Grace is 16 years old.Mark is 5 years more than twice Grace’s age.How old is Mark?John is 10 years younger than Ben. In three years Ben will be twice as old as John. How old is Ben now?5 years ago, Nina was twice as old as Sam. In 5 years, she will be 1.5 times as old as Sam. How old are Nina and Sam?Miguel is 46 years old. He is 4 years older than three times his sons age.Find the ge of his son.A mother is currently 10 times older than her son. In 4 years time, she will be 7 times older than her son.