Answer:
-2
Step-by-step explanation:
5x-2+3x=17+12x-23 combine like terms
8x-2=12x-6
-8x -8x
-2=4x-6
+6 +6
4=4x divide each side by 4
x=1
Answer:
mean= 90
Step-by-step explanation:
The mean is the terms added together, then divided by the number of terms (in this case, 8):
![93+81+94+78+89+92+94+99=720\\\\\frac{720}{8} =90](https://tex.z-dn.net/?f=93%2B81%2B94%2B78%2B89%2B92%2B94%2B99%3D720%5C%5C%5C%5C%5Cfrac%7B720%7D%7B8%7D%20%3D90)
Done.
The answer is 6.1 = 6 1/10