A positive number is 5 times another number. If 21 is added to both th

1.	A positive number is 5 times another number. If 21 is added to both the numbers,then one of the new numbers becomes twice the other new number. What are thenumbers?digits it is
Answer» x = 5y x + 21 = 2( y +21) x + 21 = 2y + 42 Substitute the FIRST EQUATION in the SECOND one, 5y + 21 = 2y + 42 5y + 21 - 2y - 42 = 0 3y -21 = 0 3y = 21 y = 21/3 = 7 x = 5y *Therefore, x = 5 7 x = 35 The number is 35. Hope this HELPS !**

A positive number is 5 times another number. If 21 is added to both the numbers,then one of the new numbers becomes twice the other new number. What are thenumbers?digits it is

Answer»

x = 5y

x + 21 = 2( y +21)

x + 21 = 2y + 42

Substitute the FIRST EQUATION in the SECOND one,

5y + 21 = 2y + 42

5y + 21 - 2y - 42 = 0

3y -21 = 0

3y = 21

y = 21/3 = 7

x = 5y

Therefore, x = 5 * 7

x = 35

The number is 35.

Hope this HELPS !