X+y = 20
x-y = 4
Solve: Add them two first -> 2x = 24 ->x = 12
So y = 8
Answer:
D
Step-by-step explanation:
every other answer makes no sense because it's either adding or subtracting normally therefore it has to be D that uses proportion
the slope of the line above is -2
Answer:
si
Step-by-step explanation:
la longitud mayor es menor que la suma de las otras 2 longitudes que es 10