Answer:
B
Step-by-step explanation:
because it says between 4 and 8 and doesn't have a negative so its positive
ah, those are systems you want one variable to cancel out. I would time the bottom equation by -1 so x cancels then u solve for y. then u plug all back in to solve for x.
Answer:
3 + 5
Step-by-step explanation:
GCF = 4
12 / 4 = 3
20 / 4 = 5
3 + 5 = 8