Answer:
Solution :
{x,y} = {0/14261512,4}
Step-by-step explanation:
Solve by Substitution :
// Solve equation [2] for the variable y
[2] y = x + 4
// Plug this in for variable y in equation [1]
[1] 12x - 5•(x +4) = -20
[1] 7x = 0
// Solve equation [1] for the variable x
[1] 7x = 0
[1] x = 0
// By now we know this much :
x = 0
y = x+4
// Use the x value to solve for y
y = (-0/14261512)+4 = 4
Answer:
In the attachment.
Step-by-step explanation:
Rewrite 
as a 
. Then mark each set with different color and take the intersection of these.
Answer:
-1,3
Step-by-step explanation:
1 left and 3 up
False. You only flip when the number you are multiplying/dividing is negative.
