Answer:
-2x+6y
Step-by-step explanation:
2x-4x= -2x
3y+3y= 6y
x= -2x
y= 6y
The answer would be -2x+6y
I really do hope I answer your question!
c)
a is a right angle seeing that it is 90°
hope that helpz
12-2=10
Step by step explanation: