Step-by-step explanation:
usually Brunei do like this:
y=3-x
then subs this eqn to the second eqn
sorry if I'm wrong :(
Step-by-step explanation:
The sum of the interior angles of a triangle is equal to 180°. So from the figure, we can see that
Collecting all similar terms, we get
or
So the angle measures are now as follows:
200,000,000 20,000,000 9,000,000 100,000 0 4,000 300 30 0
The answer is D because if you distribute, you get: 3x-3=3x-3
And anything you plug in for X has the same solution on both sides of the equation
I'm not sure if I got the question right, but:
2x+4y=12
2*(-2)+4*4=12
-4+16=12
12=12