Respuesta :

let age of son = x years and y = age of Mrs Johnson, then:-

y = 5x

and

y- 3 = 8(x - 3)

plug y = 5x into the above:-
5x - 3 = 8x - 24
21 = 3x  
x = 7  

Sons age is 7  and Mrs Johnson's age is 35.



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