Answer:
6/20 or 3/10
Step-by-step explanation:
first you add all of the marbles together which is 20 and the you have 6 orange marbles which is 6 then turn it into a fraction 6/20 or a simplified fraction 3/10
802
42
rearrange them properly to get
x-y=7
-3x+y=12
( by elimination method)
x-y = 7
-3x+y=
(x+ –3x) + (–y+y) = (7+12)
-2x+0= 19
x= -9.5
from eqn(i)
-9.5 - y=7
-y=16.5
y= -16.5
