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OFFERING 30 POINTS! ANSWER ALL!

Solve the system using substitution. Verify the solution.

1. -3x-y=-9
-8+2y=-10

2. 8x+5y=-2
-6x+y=-8

3. 4x-y=-26
-x+3y=23

Respuesta :

1. -3x-y=-9
X=3- y/3

Answer:

1.  3.333333333333...

2. 1

3. -5

1. -8 + 2( -3x + 9) = -10

   -6x + 10 = -10

   -6x = -20

      x = 3.33333333...

2. 8x + 5(6x - 8) = -2

    38x - 40 = -2

    38x = 38

        x = 1

3. -x + 3(4x +26) = 23

    11x + 78 = 23

            11x = -55

              x = -5

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