Emojilover117 Emojilover117
  • 16-04-2020
  • Mathematics
contestada

I need help ASAP!!!!!!!
What is the value of y in this system of equations? Negative 6 x + 2 y = negative 18. Negative 3 x minus 2 y = 54.

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amna04352
amna04352 amna04352
  • 16-04-2020

Answer:

y = -21

Step-by-step explanation:

-6x + 2y = -18

-3x - 2y = 54

3x = -2y - 54

-2(2y - 54) + 2y = -18

6y = -126

y = -21

Answer Link
wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 07-07-2020

Answer:

y = -21

Step-by-step explanation:

-6x+2y = -18

-3x-2y = 54

Multiply the second equation by -2

-2(-3x-2y) = 54*-2

6x +4y = -108

Add this to the first equation to eliminate x

6x +4y = -108

-6x+2y = -18

-----------------------

      6y = -126

Divide by 6

6y/6 = -126/6

y = -21

Answer Link

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