Question 596266
First, add what is in the parenthesis.

(10+5)= 15

Second, fill in 15 in the equation where (10+5) was.

[2*15]-5

Third, multiply 2*15.

2*15=30

Fourth, fill in 30 where [2*15} was.

30-5

Last, subtract 5 from 30.

30-5=25

Then you have your answer.