I believe that the answer to this is b
Answer: (4,8)
First you have to solve for Y in either equation. I solved for Y in the second equation and my new equation was y=12-x.
Then you plug this new equation into the equation you did not touch. It will become 3x+ (12-x)=20.
Next you solve this equation for X which would be 4.
Lastly you plug in 4 in either equation. I plugged it in the first equation and it became 3(4)+y=20
I hope this helps some :)
Answer:
Step-by-step explanation:
90+42 angle S=180 degree(being sum of interior angles of a triangle)
132 angle S=180
angle S=180-132
angle S=48 degree
Answer:

Step-by-step explanation:
Hi there!





Thus,
is our final answer.
Hope it helps! Enjoy your day!

Answer:
17°
Step-by-step explanation:
73°= EGB
EGB+ x° = 90°
so x° = 90°-73° =17°