Answer:
You end up getting the same equation!
Step-by-step explanation:
None of those are near 36 at all, so none of the above would be your answer.
Answer:
2
Step-by-step explanation:
the coefficient is the number that multiply the letter
X + y = 1.....multiply by -1
4x + y = -23
---------------
-x - y = -1 (result of multiplying by -1)
4x + y = -23
---------------add
3x = - 24
x = -24/3
x = -8 <====
x + y = 1
-8 + y = 1
y = 1 + 8
y = 9 <====