Answer:
Present age of Jack is [tex]x-8[/tex] years.
Step-by-step explanation:
Let the present age of Jack is [tex]y[/tex] years.
According to the given condition, He will be [tex]x[/tex] years old in 8 years from now.
So, his age after 8 years can be written as,
[tex]x=y+8[/tex]
Therefore, the present age of Jack will be,
[tex]y=x-8[/tex] years.
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