Answer:
Step-by-step explanation:
"A" must be added to first expression to get the second one:
- A + 2x² - 3 xy + 5yz = x² - xy + y²
- A = ?
------------------------
- A = x² - xy + y² - (2x² - 3 xy + 5yz) =
- x² - xy + y² - 2x² + 3 xy - 5yz=
- -x² + y² + 2xy - 5yz
Answer:
x=-1 y= -5
Step-by-step explanation:
y = – x – 6
y = x – 4
Substitute into y = -x-6 into the second equation
y =x-4
-x-6 = x-4
Add x to each side
-x-6+x =x-4+x
-6 =2x-4
Add 4 to each side
-6+4 =2x-4+4
-2 = 2x
Divide by 2
-2/2 =2x/2
-1 = x
Now find y
y =-x-6
y = -(-1) -6
y =1-6
y = -5
The answer is open circle arrow going to the left. I hope this helped! :)
Answer:
20 inches
Step-by-step explanation:
