We'll first simplify both sides of the expression to get (simply using the distributive property):

Then, we can simplify a little bit:

To solve for n, we have to isolate it. Let's subtract 3n from both sides to further simplify it:

Then, add 18 to both sides to get the value of n:

And that's your answer. If you have questions on how I got that, feel free to ask!
Answer:
-3 + 8a
Step-by-step explanation:
multiply 3 by -1 as well as -8a by -1 and you'll get -3 + 8a
Try. 36x18. then add 235+135. and then subtract what u multiplyed and added
You jogged 3.7 total miles! 2.2 - 0/7 = 1.5 + 2.2 = 3.7! Hope I helped!