X=15
Y= -7
Remember to form simultaneous equations with the information given
Answer:

The file includes the input of your equation, comment if the equation you input is a mistake.
The answer is d.
The parallelogram is 2 times the height of the triangle.
Answer: -5
Step-by-step explanation:
3x=(2x+6)-15
3x=2x-9
x=-9
x+2=-7
x+4=-5