Christina’s age is equal to three times her age in 3 years’ time minus three times her age 3 years ago. How old is Christina?
C=Christina's age today
C+3 = her age in three years time
C-3 = her age three years ago
Christina’s age (C=) is equal to three times (3*) her age in 3 years’ time (C+3) minus (-) three times (3*) her age 3 years ago (C-3).
C=3*(C+3)-3*(C-3)
Solve for C (she's still a teenager).
I need help with this 2 does any one know
How old is she?
18
To find Christina's age, we can represent her current age using the variable "x".
According to the given information, Christina’s age in 3 years’ time will be "x + 3", and her age 3 years ago was "x - 3". The equation representing the given information is:
x = 3(x + 3) - 3(x - 3)
Now, we will solve this equation for "x" to determine Christina's age.
x = 3(x + 3) - 3(x - 3)
x = 3x + 9 - 3x + 9
x = 6x + 18
-5x = 18
x = 18 / -5
x = -3.6
Based on the equation, the solution for "x" is -3.6. However, since age cannot be negative, this value is not meaningful in the context of age. Therefore, there may be an error or inconsistency in the given information.
Please verify the given information to resolve any inconsistencies and provide an accurate solution.