X for left(blue)=43
x for right(red)=17.5
X is the number
sum means add
sum of half a number and 4 means
(x/2)+4
result is -16
(x/2)+4=-16
minus 4 both sides
x/2=-20
times 2 both sides
x=-40
the number is -40
Answer:
B. 184
Step-by-step explanation:
A proportion is an easy way to solve this:

Answer:
2 3 1 3
Step-by-step explanation: