SOLUTION: jon is twice as old as his sister, jane, less 4 years. jon is 18 years old. how old is jane?

Question 74392: jon is twice as old as his sister, jane, less 4 years. jon is 18 years old. how old is jane?
Answer by cathieb1225(41) (Show Source): You can put this solution on YOUR website!
x is Jane's age;2x-4 is Jon's age. Because he is 18 years old, the equation would be 2x-4=18.
2x-4=18
Add 4 to both sides of the equation
2x-4+4=18+4
2x=22
Divide both sides by 2
2x/2=22/2
x=11
Jane is 11 years old.
To check your answer, substitute 11 for x. 2(11)-4=18
22-4=18
18=18
RELATED QUESTIONS
Jack is 15 years old, and his sister, Jane is 5 years old. In how many years will jack be (answered by ankor@dixie-net.com,checkley77)

John is x years old and his sister Jane is (5x-18)years old. Given that Jane is thrice as (answered by MathLover1)

Gerald who is twelve years old is two times as old as his sister Jane. How old was... (answered by josgarithmetic)

Ann is p years old. Her sister Jane is twice her age. How old is... (answered by Edwin McCravy)

Gerald who is twelve years old is three times as old as his sister Jane how old will... (answered by stanbon)

Jessica is 24 years old. She is twice as old as Jane was when Jessica was as old as Jane... (answered by Edwin McCravy)

Can you please help,Von is thrice as old as his brother Jon. Four years ago, he was 4... (answered by Theo)

Carol is twice as old as Jane. Five years ago she was 3 times as old as Jane. How old is... (answered by Maths68)

Tony is twice as old as Jon. Jon is five years older than Matt. Angie is five years older (answered by algebrahouse.com,TimothyLamb,stanbon)