Question

6x + 15 = _(2x + 5)

find missing number please

Answer 1

Answer:

3

Step-by-step explanation:

6x + 15 = _(2x+5)

Let's see if it's possible to find out the missing value by factorisation.

• 6x + 15

We know in the table of 3, 3*2 = 6 and 3*5 = 15. So we easily take 3 common from this expression:

• 3(2x+5)

We see the missing number is 3.