Answer:

15

Step-by-step explanation:

according to question

4x+10+5 = 5x

4x + 15 = 5x

5x-4x=15

x= 15

(check)

4(15) +10 = 5(15)

60 + 10 = 75

70 ≠ 75

the difference is 5

so , 4 times 15 +10 is 5 less than 5 times 15.

Verified answer

Answer:

Let the certain number be x.

Four times the certain number= 4x

Five times the number= 5x

4x+10= 5x-5

4x-5x= -5-10

-x= -15

x= 15

Hope it helps UwU <3