Question

divisibility rule of 7​

Answer 1

Answer:

Proving Divisibility Rules

Prove that when a number is divisible by 7 , 7, 7, the result when subtracting twice the last digit from the number formed by the remaining digits is a multiple of 7.

Answer 2

Answer:

Step-by-step explanation:

Prove that when a number is divisible by 7 , 7, 7, the result when subtracting twice the last digit from the number formed by the remaining digits is a multiple of 7.