Pls send help. I’m not good at all at math..

Answer:
Step-by-step explanation:
so if im correct u do 3 - 12 take away the varibels the letters and do minus minus which minus minus equals plus
so...3+12=15
15
thats all i know im only in 7th grade i hope this works
:(
Step-by-step explanation:
i hope it helps this is actually an app that i trust