First Step: Leave "x" alone, pass the 3 to the other side
X= 10+3
Second Step: Add 10 plus 3
X= 13
So your answer is: x=13
You would find the sign if the signs are not the same if you are dividing or multiplying its negitve if its the same its positive
Answer:
Completing the experiment a few more times and combining the results to the trails already done.
