Question

a positive number is 7 times another number .If 15 is added to both the number then one of the new number becomes 5/2times the other new number .what are the numbers?​

Answer 1

Step-by-step explanation:

let positive number be x

x=7y

x+15=7y+15

a=5/2b

2x+30=35y+75

2x-35y=45

14y-35y=45

21y=45

y=2.14

then x=15