Question

what is the sum of 19 and their difference is 9

Answer 1

Answer:

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Answer 2

Solution

Given :-

• Sum of two number be = 19
• Difference be both be = 9

Find :-

• These Both Number

Explanation

Let,

• First Number be = x
• Second Number be = y

Case(1).

(Sum of two number be = 19)

==> x + y = 19 _________(1)

Case(1).

(Difference be both be = 9)

==> x - y = 9 __________(2)

Add equ(1) & equ(2)

==> 2x = 19 + 9

==> 2x = 28

==> x = 28/2

==> x = 14

Keep value of x in equ(1)

==> 14 + y = 19

==> y = 19 - 14

==> y = 5

Hence

• First Number be = 14
• Second Number be = 5

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