Question

the sum 20 the diffrence 12 . i in elemerty school need answer quick i giving alot

Answer 1

Solution :

Let us assume that there exists two numbers a and b such that their sum is 20 and the difference is 12.

So

a+b = 20

&

a-b = 12

On adding these two equations :

> 2a = 32

> a = 16

b = 20 - a = 20 - 16 = 4

Answer : These two numbers are 16 and 4 respectively.

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Answer 2

Step-by-step explanation:

Solution :

Let us assume that there exists two numbers a and b such that their sum is 20 and the difference is 12.

So

a+b = 20

&

a-b = 12

On adding these two equations :

> 2a = 32

> a = 16

b = 20 - a = 20 - 16 = 4

Answer : These two numbers are 16 and 4 respectively.

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