Answer:
the opposite Angles sum up to give 180
Step-by-step explanation:
3y +3y = 180
y=30
if y = 30 the x = 55
are you clear?
Answer:
Yes
Step-by-step explanation:
But if you stuck a pencil through the center of the picture the line that it makes would not be coplanar.
Answer:
-4y-7
Step-by-step explanation: You have to add all like terms first. So -4+-3 that is -7. Then the equation is -4y-7.