Question

Q.2) The sum of three numbers is 15. If the
second number is subtracted from the sum
When the third number is subtracted from
the sum of twice the first number and the
second number, we get 4. Find the three
of first and third numbers then we get 5.
numbers.​

Answer 1

Answer:

20 is your answer if it was wrong that is not my mistake this is mistake of he/she that inverted this question.

Answer 2

Answer:

3, 5, 7

Step-by-step explanation:

x + y + z = 15 .... (1)

2x + y - z = 4 .... (2)

x - y + z = 5 ... (3)

(1) - (3) ⇒ 2y = 10 ⇒ y = 5  

x + 5 + z = 15

x + z = 10

x = 10 - z → (2)

2(10 - z) + 5 - z = 4

25 - 3z = 4 ⇒ z = 7

x + 5 + 7 = 15 ⇒ x = 3