Additive inverse means adding the inverse is same as subtracting the other (???)
-3-(-6)=-3+6=3
Answer:
All real numbers less than or equal to 18
Step-by-step explanation:
Let
x -----> the number
we know that
The algebraic expression that represent this situation is

Solve for x
Multiply by 6 both sides to remove the fractions

Combine like terms left side

Adds 18 both sides

Subtract 5x both sides


Rewrite

All real numbers less than or equal to 18
To get heads: 1/2 because there are two sides to a coin.
There are 6 sides on a cube and 2 numbers are greater than 4 (5 and 6) so 2/6
Now multiply: 1/2 * 2/6 = 2/12 = 1/6
1/6 is the final answer.