Question

find the sum of. (-10)+(-15)​

Answer 1

Answer:

$( - 10) + ( - 15) = - 10 - 15 = - 25$

hope it will help you

Answer 2

Answer:

$( - 10) + ( - 15) \\ 10 + 15 \\ 25$

the minus sign is changed to because when a number comes outside the bracket the sign is changed

I hope it help you