The answer is 45 (explained down at the image).
Answer:
45
Step-by-step explanation:
What you wanna do is just simplify the equation as much as possible:
First, the inner parenthesis:
2(10-5)=20-10=10
5(6-5)=30-25=5
And then we have:
3(10+5)=
Just simplify! :)
30+15=45
