Answer:
x=2/3
Step-by-step explanation:
-3x+4=2
-3x=-2
x=2/3
Answer:
12.5
Step-by-step explanation:
see attached image
The keyword is "sum" which tells you x, y, and z are being added. One half of the sum means that the sum of the three numbers is going to be divided by 2.
x + y + z
------------
2
The answer to the question
5 is the mean of variable a I might be wrong