SOLUTION: Mark is 23 years older than his sister Ann. In 9 years, he will be twice as old as Ann. How old is each of them now?

Question 539769: Mark is 23 years older than his sister Ann. In 9 years, he will be twice as old as Ann. How old is each of them now?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Present age
Ann x
Mark' x + 23

After 9 years

Ann x + 9
Mark' ( x + 23 + 9 )
( x + 32 )

( x + 32 ) = 2 ( x + 9 )
1 x + 32 = 2 x + 18
x -2 x = 18 + -32
-1 x = -14

x= 14
Ann age = 14 years
Mark' age = 37 years

RELATED QUESTIONS
Steve is 19 years older than his sister Ann. In 16 years, he will be twice as old as... (answered by Cromlix)

Mark is 10 years older than his sister Sarah. In 4 years, he will be twice as old as... (answered by randyjoseph7)

Mark is 20 years older than his sister michelle. In 4 years he will be Twice as old as... (answered by josmiceli)

Charles is 23 years older than his sister Carol. In 16 years, he will be twice as old as (answered by ikleyn)

Jason is 23 years older than his sister Joan. In 18 years, he will be twice as old as... (answered by josgarithmetic,MathTherapy)

Charles is 23 years older than his sister carol. In 16 years he will be twice as old as... (answered by ikleyn)

Travis is 21 years older than his sister Michelle. In 9 years, he will be twice as old as (answered by stanbon,greenestamps)

Doug is 12 years older than his sister Linda. in 4 years ,he will be twice as old as... (answered by edjones)

Tony is 20 years older than his sister Danielle. In 16 years he will be twice as old as... (answered by jorel1380)