Hello!
Explanation:
This question's it's about the order of operations. It stands for parenthesis, exponents, multiply, divide, add, and subtract. It can also go left to right.
Do parenthesis first.
[tex]1+2=3[/tex]
[tex](3-5)*2-8[/tex]
[tex]-2*2-8[/tex]
Multiply left too right.
[tex]-2*2=-4[/tex]
[tex]-4-8[/tex]
[tex]=-12[/tex]
Add/subtract left too right.
[tex]1+2(-12)[/tex]
Multiply left to right.
[tex]2(-12)=-24[/tex]
[tex]1-24=-23[/tex]
Answer: [tex]\boxed{=-23}[/tex]
Hope this helps!
