Question

Sum of two numbers is 70 and the difference between them is 40, find the numbers.​

Answer 1

Answer:

the answer is as follows

Step-by-step explanation:

let the number be x

another no = 70 - x

ATQ

70-x -x = 40

70-2x = 40

-2x = 40+70

-2x = 110

x =110/2

x = -55

Answer 2

let the two no be x and y .

according to the question

x+y = 70 ........1

x-y = 40..........2

adds eq1 and eq2

2x= 110

x= 55

put x in eq 2

55-y = 40

-y = 40-55

-y = -15

y= 15

hence the no are 55 and 15