Answer:
4.7
Step-by-step explanation:
If you use the rules of the signs to eliminate the minuses and then substract 8.1 from 3.4 you get 4.7 which, if you sum it with 3.4 gives 8.1
Answer:
a. 4
b. -8
c. -2
Step-by-step explanation:
Take any number x;
Its opposite is -x
The opposite of its opposite is x
Using the above statements, we can solve the following questions
Solving (a): -4
In this case:

The opposite; -x is


Solving (b): 8
In this case:

The opposite; -x is

Solving (c): -2
In this case:

The opposite; -x is


The opposite; -(-x) is


Percent means parts out of 100
80%=80/100=8/10=4/5
Answer:
-3x + 9
Explanation:
Because these two integers that is - and - is said to be added and write the sign of of greater or bigger number.
Answer:
90.393
Step-by-step explanation: