Answer:
1309 marbles
Step-by-step explanation:
All together:
7x - 6y = 16
y = (-5)
using substitution method
7x - 6(-5) = 16
7x +30 = 16
7x = 16 - 30
7x = 14
x = 14/7
x= 2
x = 4
9(x - 2) = 18
9x - 18 = 18
9x = 18 + 18
9x = 36
x = 36/9
3.04
go right 5 from (0,0) then up 5 from (5,0)
4.5 pounds or 4 1/2 if u need fraction form.
