Answer:
6
Step-by-step explanation:
12+x=3x
2x=12
x=6
Answer:
8
Step-by-step explanation:
<h2 />
Answer:
5-rl=5
Step-by-step explanation:
rl=5-5= and anawer is=0
Answer:

Step-by-step explanation:
Simplify each term
Answer:
c
Step-by-step explanation:
reason for is because when you add all the like terms you end up with c