Answer:
7: (3,9) 8:(-2,1) 6: (2,10)
Step-by-step explanation:
7) 2x+3=-2x+15
x=3
y=2(3)+3
y=6+3
y=9
8)x= -1(1+2y)/3
-4-2y=-6
y=1
x=-2(1+2(1))/3
x=-2
6)2x-16=-12
x=2
y=2+8
y=10
Answer:
576 quarts for 12 hours and 1152 quarts per day
Step-by-step explanation:
Check attachment
You would combine the like terms. So 6 plus 2 equals 8. Then just add a "y" to the end of the 8, because of the fact that the 6y and 2y are like terms.
First cross multiply to get:
80x = 65(x+3) (distribute)
80x=65x+195
15x=195 (subtract 65x from both sides)
x=13 (divide both sides by 15)
Hope this helps