Answer/Step-by-step explanation:
Given:
Maria is 5 years older than her younger sister.
If Maria will be n years after 7 years,
To Find:
Find their total age in terms of n.
Solve:
n+(n-5)
n + n = 2n
2n -5
n - years Mary's age
Therefore, n-5 years younger sisters age
[RevyBreeze]
