Answer:
x = 2
y = -1
Step-by-step explanation:
2x + y = 3
-2y = 14 - 6x
6x - 2y = 14
2x + y = 3 | ×3 |
6x - 2y = 14 | ×1 |
6x + 3y = 9
6x - 2y = 14
__________--
5y = -5
y = -5/5
y = -1
2x + y = 3
2x + (-1) = 3
2x = 3 + 1
2x = 4
x = 4/2
x = 2
X= amount of orange juice in the beginning
3/4=(3/8)X
.75=.375X
.75/.375=X
X=2
there were 2 liters in the beginning
Answer:
Lorena made a mistake when she subtracted x1 from x2
Step-by-step explanation:
we know that
The formula to calculate the slope between two points is equal to
In this problem we have
The points are
and 
therefore
Lorena made a mistake when she subtracted x1 from x2