Respuesta :

staffordgs7

Answer:

Step-by-step explanation:

Let number be x and y

x+y=56.........eqn(I)

x-y=4..............eqn(ii)

x=4+y.........eqn(iii)

Substitute eqn (iii)&(I)

You get y=26

From eqn(iii)

You get x=30