Answer:
x = 12
Step-by-step explanation:
First, eliminate the fractional coefficient 1/2, by multiplying all three terms by 2:
-24 + x = -12
Adding 24 to both sides isolates x: x = -12 + 24, or x = 12
(So “/” will basically mean divide)
450/3000=0.15
0.15*100=15% rate
40 dollars per 5 students=9 dollars per 1 student
divide both sides by 5.
