plzzzzzzzzzzzzz help me not getting this question
please help
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let his daughter age= xyrs
his age =y yrs
AT1st condition
seven yrs ago
his daughter age =x-7)yrs
his age =y-7)yrs
y-7=7(x-7)
y-7=7x-49
7x-y=49-7
7x-y =42.........(1)
A.T 2nd condition
y+3=3(x+3)
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