the sum of two numbers is-5. When twice the first number is added to the second number the result is - 2, find the two numbers

3 and - 8

3 x 2 = 6

6 + - 8 = 2

3 + - 8 = 5

You have to find out which numbers add up to - 5

Mainly trial and error

Step-by-step explanation:

First write the question as an equation

x+y = - 5

2x+y = - 2

From the given equations, we can create a third one.

x+y+2x+y = - 7 or 3x+2y = - 7

Use trial and error method for the possible values x and y

We know that at least one of these two have to be negative.

x can be 1, in which case y has to be 5.

Check this for

x+y ≠ - 5

x can be - 1

Try another one where x = - 1 and y has to equal - 2

Check this

X

x+y = - 5

but,

2x+y ≠ - 2

Another one,