Question

The sum of to numbers are 13 and their diffence is 5

Answer 1

Let the no's. be X and y:-

X + y = 13

X - y = 5

subtracting both eq.

2y = 8

y = 4

X = 13 - 4 = 9

Answer 2

Answer:  X  is 9

               Y  is 4

Step-by-step explanation:

x+y=13

x-y=5

+y and -y will be cancelled

so , x+x=13+5

2x=18

x=18/2

=9

THEREFORE X=13-9

                     X=4