thegamerbriana624 thegamerbriana624
  • 17-03-2020
  • Mathematics
contestada

elimination using addition and subtraction
6x-2y=32
4x-2y=18

Respuesta :

hanifchoirunnisa
hanifchoirunnisa hanifchoirunnisa
  • 17-03-2020

6x - 2y = 32

4x - 2y = 18

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

2x = 14

x = 7

4x - 2y = 18

4(7) - 2y = 18

28 - 2y = 18

-2y = -10

y = 5

Answer Link
wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 17-03-2020

Answer:

x=7, y=5

Step-by-step explanation:

6x-2y=32

4x-2y=18

Subtract the second equation from the first equation

  6x-2y=32

-  4x-2y=18

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

 2x      = 14

Divide each side by 2

2x/2 =14/2

x=7

Now substitute x=7 into the first equation to find y

6*7-2y=32

42 -2y = 32

Subtract 42 from each side

42-42 -2y = 32-42

-2y = -10

Divide each side by -2

-2y/-2 = -10/-2

y =5

Answer Link

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