We just need to plug in 7 for B!
Let's do it !
2 + (10 - 7)
We always start with the parenthesis first ! It's just a rule in math :)
10 - 7 = ?
10 - 7 = 3
Now we have ...
2 + 3
2 + 3 = 5
Your final answer is 5!
I hope I helped :) Just comment if you have any questions and remember to vote me "brainliest" if you like my answer !!!
