Step-by-step explanation:

Answer:
D and F will be your answers
Step-by-step explanation:
hope this helps
Answer:
x=0, y=-3
Step-by-step explanation:
Input x=y+3 into 6x-5y=15 to get:
6(y+3)-5y=15
Solve for y
6y+18-5y=15
y+18=15
y=-3
Plug in y to get x
8x-10=3x+90. 8x-3x=90-10. 5x=80. x=16. So angle B is 3*16+90=138° :)