Answer:
Additive Inverse of 87 = -87
Step-by-step explanation:
Since the additive inverse of 87 is -87, additive inverse is also known as the opposite number. To get the additive inverse of a postive number you put a minus in front of it and to get the additive inverse of a negative number, you remove the minus to make it a positive number.
Answer:
11 3/5
Step-by-step explanation:
x+2/5=12
First, you subtract 2/5 from both sides, so the equation becomes:
x=11 3/5
Therefore, x equals 11 3/5
Answer:
set middle number=x
then left side number=x-1
and right side number=x+1
(x-1)+x+(x+1)＝30
3x=30
x=10
x-1=9
x+1=11
numbers are 9,10,11
Answer:
34 Step-by-step explanation:
