I hope this helps you
y=-2x
x+3.(-2x)=15
x-6x=15
-5x=15
x=-3
y=-2.-3=6
its your answer see and mark me brainliest plz
You need to know that right is congruent to UK answer is c
Answer:
The number of edges is 10
Step-by-step explanation:
we know that
The Euler's formula state that, the number of vertices, minus the number of edges, plus the number of faces, is equal to two

we have

substitute the values

solve for E

