The sum of the ages of a mother and a daughter is 50yrs. Five years ago, the mother’s age was 7?

Its impossible because the daughter will be bigger than the mother but if you mean ''5 years ago the daughter's age was 7'' then this is how it will be solved: X= the age of mother y=the age of daughter x y=50 and y-5=7 so y=7 plus 5 so y=12 and we know the x plus y=50 that means x plus 12=50 that means x=50-12 it means x=38 so the mother's age is 30 and the daughter age is 12.