Question

The sum of 2 numbers is 620 the difference is 20

Answer 1

the numbers are 300 and 320.

You can solve this by using the equation x+ (x+20) = 620.

Answer 2

First number is 300 second in 320

Explanation:

let x be the first number

let x + 20 be the second

620 = x + (x +20)

620 = 2x + 20

620 - 20 = 2x

600/2 = 2x/2

x= 300

x + 20 = 320

Define variable for each number, sum of the 2 variable must equal 620 then isolate for x and calculate the sum of the first and second number