Question

Solve the following (Use separate)
1) Find two numbers whose sum is 12 and their difference is (-2)​

Answer 1

Answer:

5 and 7

Step-by-step explanation:

let the numbers be x,y

x + y = 12. 1

x - y = -2. 2

Adding 1 and 2

x + y + x - y = 12 - 2

2x = 10

x = 5

Substituting x in 1st equation

5 + y = 12

y = 7

Answer 2

AnswEr :

Let the Numbers be x and y.

Given that ;

➨ x + y = 12 (¡)

➨ x - y = - 2 (¡¡)

_____________

➨ 2x = 10

➨ x = 5

★ Putting the Value of x = 5 in (¡)

➨ x + y = 12

➨ 5 + y = 12

➨ y = 12 - 5

➨ y = 7

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