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
Answer:
c-c+a+|a|
5-5+4+|4|
8
Step-by-step explanation:
Dolls = d
train = t
8d + 10t = 150
I think is let that
Answer: 72*x+12*y-(60)=0
72x + 12y - 60 = 12 • (6x + y - 5)
12 = 0
Step-by-step explanation:
