I am still learning, and am most likely incorrect.
I believe you remove the 3's since their not needed, and do this:
2x = 4x + 6 - (2x)
so then just ignore "x" and do this:
2 = 4 + 6 - 2
2 = 10 - 2
2 = 8
x = 8
If you need 300 bars per day, you need 2 cases per day (2*150 = 300).
Therefore you need 2*7 = 14 cases per week
You can subtract the case you already have leaving you with 13 cases needed
Let's pick an arbitrary value of 5.




Let's pick another arbitrary value: 1


Between these two values, the polynomial is continuous. This means for the two polynomial points to be satisfied, there must be
at least one root between these two points.
We can either use the Intermediate Value Theorem or Newton's method to make a better approximation from there.