I am not sure i am in 7th grade but i prefer you to use the app called photomath
Answer:
D
Step-by-step explanation:
-2x+8.1y
+9x-5.3y
________
get the answer 7x+2.8y
Nope, I don't. LOL, if you don't agree with me, please don't start the fifth shinobi war. Also, may I ask how it's relates to a school assignment? LOLOL
Answer:
d should be correct, I hope this helps!
Step-by-step explanation:
:D