It appears you are on the right track.
3x³ -2x - 8 = 0
......,...........,
2.39x+2.79y=1344.50 where x is regular and y is premium
x+y=550
U will get x=475 y=75
75 gallon premium
Answer :
n = 4
Step-by-step explanation:
5n + 34 = -2(1-7n)
first distribute
5n + 34 = -2(1) -2(-7n)
5n + 34 = -2+14n
-5n
+2
then get all of n to the same side
36 = 9n
isolate the variable
36/9 = 9n/9
4 = n
