Question

if 7 times a certain number is substracted from 630 the remainder is three times the number find the number​

Answer 1

Answer:

63

Step-by-step explanation:

let the number be x.

According to the question,

630 - 7x = 3x

So, 630 = 7x + 3x

630 = 10x

630/10 = x

So, x = 63

Answer 2

Answer:

630-7x=3x

630=3x+7x

630=10x

630/10=x

63=x