R=C/2(eliminate "2" from r by dividing both sides by 2)
Answer: subtraction property
x-(-6)=18
x+6=18
Subtract 6 from both sides
And you get x=12
Answer:
P means probability. R means event of picking a red marble. 2 means event of picking a marble with 2 on it.
Step-by-step explanation:
