Respuesta :
Answer:
x=-1, y= -6
Step-by-step explanation:
4x+y=-10
9x+y=-15
Subtract the second equation
4x+y=-10
-9x-y=15
---------------------
-5x = 5
Divide each side by -5
-5x/-5 = 5/-5
x = -1
Now find y
4x+y = -10
4(-1) +y = -10
-4+y = -10
Add 4 to each side
-4+4 +y = -10+4
y = -6
Answer:
(-1,-6)
Step-by-step explanation:
y = -10-4x
y = -15-9x
-10-4x = -15-9x
5x = -5
x = -1
y = -15-(-9) = -6