Question

One of the two numbers is twice the other. The sum of the numbers is 12. Find the
numbers​

Answer 1

Answer:

Let one number be x.

Other number=2x

According to question,

x+2x=12

3x=12

x=12/3

x=4

Answer 2

Answer:

x=8 and y=4

Step-by-step explanation:

let let the numbers X and y

x+y=12

y=12-x-(1st equation)

x=2y-(2nd equation)

now put y=12-x in 2nd equation

x=2(12-x)

x=24-2x

x+2x=24

3x=24

x=24/3=8

y=12-x

y=12-8

y=4