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Which system of equations has only one solution?
A) 4x + 2y =8
-4x - 2y =3

B) -5X + Y =6
5X - Y = - 6

C) -3X + 4Y = 2
3X - 4Y =0

D) 2X + 4Y = 6
3X - 4Y =9

Respuesta :

sqdancefan

Answer:

  D) 2X + 4Y = 6

       3X - 4Y =9

Step-by-step explanation:

Adding the equations can be informative. The sums are ...

  A) 0 = 11 . . . . . no solution

  B) 0 = 0 . . . . . infinite solutions

  C) 0 = 2 . . . . . no solution

  D) 5X = 15 . . . one solution (x, y) = (3, 0)

Answer:

The answer is D

Step-by-step explanation:

Here is proof:

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