Your lack of punctuation and poor sentence structure makes this question ambiguous.
e.g. Did you mean:
"K is 9 years older than L. After 7 years the total of their age is 93."
or
"K is 9 years older than L after 7 years. The total of their age is 93."
We would have two different solutions.
I will assume you meant the first.
L's current age --- x
K's currrent age --- x+9
Seven years from now:
L' age is x+7
K's age is x+9 + 7 = x + 16
x + x+16 = 93
2x = 77
x = 38.5
L is now 38.5 and K is now 47.5 years old
Your question of "so how old are they in each one of them?" makes no sense to me.
K is 9 years older than L after 7 years the total of their age is 93 so how old are they in each one of them?
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