Question 190497

let x is big number
    y is the small number

 x+ y = 35 ............................... (1)

x-5 = 2y ========> x - 2y = 5 ............ (2)

(1) - (2) =======> 3y = 30 =======> y = 10
 then x = 35 - 10
      x = 25