Question

a number is 21 lesser than the other find the numbers if their sum is 29​

Answer 1

x = one number

2x - 21 = other number {one number is 21 less than other number}

x + 2x - 21 = 54 {sum of the two numbers is 54}

3x - 21 = 54 {combined like terms}

3x = 75 {added 21 to both sides}

x = 25 {divided both sides by 3}

2x - 21 = 29 {substituted 25, in for x, into 2x - 21}

the two numbers are 25 and 29

Answer 2

Answer:

let the number be x

therefore the other number is x-21

sum of the numbers = 29

x+x-21=29

2x=50

x=25

therefore the numbers are 25 and 4