Solve the system of equations.

5x - y = 3 and -10x + 2y = -6
(Points : 1)

(0, -3)

(-3, 0)

(3, 12)

no solution

infinitely many solutions

Question

Solve the system of equations.

5x - y = 3 and -10x + 2y = -6
(Points : 1)
      
(0, -3)

      
(-3, 0)

      
(3, 12)

      
no solution

      
infinitely many solutions

anonymous · Answer

5x - y = 3...................(1)
-10x + 2y = -6...........(2)

multiply (1) by -2:
-10x + 2y = -6  ........(3)
add (2) and (3):
4y = -12
y = -3

plug y=-3 in (1)
5x -(-3) = 3
5x = 0
x = 0

solution (0,-3)

unklerhaukus · Answer

infinitely many solutions

unklerhaukus · Answer

divide the second equation by -2 and the equations are the same