Question

the sum of 2 number is 43 their different is 13 find the numbers​

Answer 1

let the number = x , x+13

=) x+x+13 = 43

2x = 43-13

x = 30/2

x = 15

and second number = x + 13

= 13 + 15

= 28

Answer. the numbers are 28 and 15

Answer 2

let the numbers be x and y

given

$x + y = 43 .....(1)\\ \\ x - y = 13 ......(2)\\ \\ now \\ \\ (1) + (2) \\ \\ = > 2x = 56 \\ \\ = > x = 28 \\ \\ also \\ \\ y = x - 13 \\ \\ y = 15$

Therefore the numbers are

28 and 15 respectively

hope it helps