3x + y = 10 >>>>>>
6x + 2y = 20
-4x - 2y = 2
2x = 22
X = 11. Y = -23.
Answer:

Step-by-step explanation:
The exterior angle in a triangle is equal to the sum of the interior opposite angles in a triangle
Therefore,

Now solve for x

Now let's solve for the exterior angle

Hope this helps you.
Let me know if you have any other questions :-)
You are given the system of equations

If you want simply to know whether (1,1) is a solution of this system, then substitute x=1 and y=1 into both equations:

This means that (1,1) is a solution, because both iqualities hold.
By dividing each general term by 3.
Example:
(3/3=1)
Answer:
12
Step-by-step explanation: