Step-by-step explanation:

Answer: true
Step-by-step explanation:
Use order of operations from left to right
• and / first
+ and - second
[6•2/(-14)]. +(9•2)=
(12/-14)+18=
(-6/7)+ 18•7/7=
(-6+126)/7=
120/7
Answer:
480
Step-by-step explanation:
because 120×4=480 if im correct
Because this is addition, you must reverse the process by (maybe) doing x/3 and 8/1 or 7/1. Cross multiply the numerators and denominators.