30 gallons...I think. 4x60=240
240x2(cause it's 2 hours)=480
480/16(16 cups in a gallon)
Therefore it's 30 gallons.
Answer:
![\large\boxed{\sf x = \frac{8y+1}{7} }](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5Csf%20x%20%3D%20%5Cfrac%7B8y%2B1%7D%7B7%7D%20%7D)
![\large\boxed{\sf x = \frac{7x-1}{8} }](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7B%5Csf%20x%20%3D%20%5Cfrac%7B7x-1%7D%7B8%7D%20%7D)
<u>Group the Variable's</u>:
2 x - 5 + 7 y - 3 = 9 x - 1 - y -8
2x -9x + 7y +y = -1 -8 +5 + 3
-7x + 8y = -1
<u><em>From this find x and y</em></u>
<u>For X</u>
-7x + 8y = -1
-7x = -1 -8y
7x = 8y + 1
x = (8y +1)/7
<u>For Y</u>
-7x + 8y = -1
8y = -1 +7x
y = (7x -1)/8
The value is 80 because 8 is in the tens place.
Step-by-step explanation:
(x²-9)/(x+3)
(x²-3²)/(x+3)
(x+3)(x-3)/(x+3)
x-3
x=-3
-3-3=-6