Question

13.) A Positive number is 3 times another number. 21
is added to both the numbers then one of the new
numbers becomes twice the other new number. What
are the numbers.​

Answer 1

Step-by-step explanation:

y=3x

21 is added

The numbers are

y+21,x+21

According to question

y+21=2(x+21)

3x+21=2x+42

3x=2x+21

3x=21

x=7⟹y=35

Answer 2

Answer:

63 and 21

Step-by-step explanation:

let the smaller number = x

bigger number = 3x. -----(we need this.)

if 21 is added to both; 3x+21 = 2×(x+21)

3x + 21 = 2x + 42

3x - 2x = 42 - 21

x =. 21

x = 21

So the positive number is = 21 x 3 = 63

PLS MARK AS BRAINLIEST