SOLUTION: How old is Charlotte if her age now is equal to 3 times her age in 3 years, less 3 times her age 3 years ago?
Algebra.Com
Question 1052646: How old is Charlotte if her age now is equal to 3 times her age in 3 years, less 3 times her age 3 years ago?
Answer by htmentor(1343) (Show Source): You can put this solution on YOUR website!
Let x = Charlotte's current age
Her age now (x) is equal to 3 times her age in 3 years (x+3) less 3 times her age 3 years ago (x-3). In equation form this is:
x = 3(x+3) - 3(x-3)
Solve for x:
x = 3x + 9 - 3x + 9
x = 18
Check:
3*21 - 3*15 = 63 - 45 = 18
Ans: 18
RELATED QUESTIONS
how many years old is a person if her age now is equal to her age in 3years x 3 less 3... (answered by macston)
How many years old is a person if her age now is equal to her age in 3 years time * 3,... (answered by ewatrrr)
If joys age now is 3 times her age 14 years ago how old is... (answered by ikleyn)
If Joy's age now is 3 times her age 14 years ago, how old is she... (answered by checkley75)
Abena is m years old now.
i. How old was she 3 years ago?
ii. How old will she be 8 (answered by josgarithmetic,ikleyn)
Six years ago a women was 9 times the age of her niece. She is now 3 times the age of her (answered by ewatrrr)
IF Tina's age 1 year from now plus her age 2 years ago plus three times her age 5 years... (answered by josmiceli)
When Ana was born her mum was 26 years old. Now her mother is 3 times her age . what is... (answered by josgarithmetic,richwmiller)
ruth is 22 years older than her son. 7 years ago ruth was 3 times her sons age... how old (answered by duckness73)