Question

factorise fully please (with explaination)
63-9b

Answer 1

Answer:

63-9b=0

9b=63

b=63/9

b=7

Answer 2

Answer:

9(7-b)

Step-by-step explanation:

63-9b

We need to find the highest number that can divide both 63 and 9 without a remainder

9*7 = 63

9*1 = 9

So since 9 can divide both values we can divide 63-9b by 9

and we get 63/9-9b = (7-b) and we have to multiple the term "7-b" by 9 since the equation does not equal anything

Final Answer 9(7-b)