Respuesta :
Answer:
Option D - (4, 5)
Step-by-step explanation:
The y cancels out
3x + x = 27 - 11
4x = 16
Divide both sides by 4
x = 4
Then substitute to get to get y
4 - 3y = -11
Subtract 4 from both sides
-3y = -15
Divide both sides by -3
y = 5
x is 4
y is 5
(4, 5)
When you add them by elimination method you do like
3x+3y=27
X - 3y=-11
__________
+3y And -3y gets cancels out
You left with
3x=27
X=-11
_______
4x=16
Now you divide 4 on Both side so you get X=4
And now you plug your x value in any of the equation above and you get y value as Y=5
3x+3y=27
X - 3y=-11
__________
+3y And -3y gets cancels out
You left with
3x=27
X=-11
_______
4x=16
Now you divide 4 on Both side so you get X=4
And now you plug your x value in any of the equation above and you get y value as Y=5