Question

The sum of two numbers is 30 and their difference is 2. Find the two numbers by writing and solving a system of equations.

Answer 1

let the numbers be x and y

you can solve this problem by creating 2 equations and solving them simultaneously.

x + y = 30 (sum)
x - y = 2 (difference)
-------- add the 2 equations eliminates y
2x = 32

solve for x. Then substitute the value into either equation to find y.

hope it helps