Question

a positive number is 5 times anothor number. if 21 is added to both the number ,then one number become twice of another new number . find the original number\ tell me fast i will be marking you as branillest

Answer 1

Let the numbers be x,y

⟹y=5x

21 is added  

The numbers are  

y+21,x+21

According to question  

y+21=2(x+21)

5x+21=2x+42

5x=2x+21

3x=21

x=7⟹y=35

Answer 2

Answer:

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Step-by-step explanation:

let the number be x

Positive number 5times = 5x

21 is added to both side = 5x + 21 = x + 21

the next number is 2 times another = 5x + 21 = 2(x+21)

5x + 21 = 2x + 42

5x - 2x = 42 - 21

3x = 21

x = 21/3

x = 7

first number = 5x = 35

second number = x = 7