Question

the sum of two numbers is 30 and the difference is 16. then the smaller number is​

Answer 1

Let x > y, we need to find y.

Given:

x + y = 30 —-> 1

x - y = 16 ——> 2

Subtracting 1 from 2, we get

(x - y) - (x + y) = 16 - 30

x - y - x - y = - 14

-2y = -14

y = 7 ——> Answer