Answer:
m = 9
Step-by-step explanation:
-2m + 8 + m + 1 = 0
-m + 9 = 0
9 = m

Remember, a number's additive inverse is simply its opposite.
Let's say we have a number a.
The opposite of a is -a, and the opposite of -a is a.
Thus, the additive inverse of
is

Hope it helps.
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Feel free to ask if you have any doubts.

Answer:
12/4
hope it helps!
Step-by-step explanation:
A multiplicative inverse is a reciprocal... A reciprocal is one of a pair of numbers that when multiplied with another number equals the number 1.
So the inverse of 4/12 is 12/4
Because 4/12*12/4= 1