Question

The sum of two numbers is 20 and their difference is 6

Answer 1

Answer:

the number are 13 and 7

Step-by-step explanation:

let the number be x and y

therefore

x+y=20 .... (1)

x-y= 6 ... (2)

adding equation (1) and(2)

2x=26

x=26/2

x=13

putting the value x=18 in eq (1)

13+y=20

y=20-13

y=7

Answer 2

SOLUTION

GIVEN

• The sum of two numbers is 20

• The difference is 6

TO DETERMINE

The numbers

EVALUATION

Let the numbers are M and N

By condition 1

M + N = 20 - - - - - - (1)

By condition 2

M - N = 6 - - - - - - (2)

Adding Equation 1 and Equation 2 we get

2M = 26

⇒ M = 13

From Equation 1 we get

N = 20 - 13 = 7

FINAL ANSWER

Hence the required numbers are 13 and 7

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