dianaa64 dianaa64
  • 08-10-2020
  • Mathematics
contestada

13. If I || m, find the values of x and y.
(7x+12)
(12x-28)
(9y - 77)

Respuesta :

randtafesh6 randtafesh6
  • 09-10-2020

Answer: i think it would be x=-28 y=-31.9

Step-by-step explanation:

7x+12=12x-28

9y-77=12x-28

x=-28

9y-77=12(-28)-28

9y-77=-364

+77 +77

9y=-287

— —

9 9

y=31.9

Answer Link
sophiethekitten1 sophiethekitten1
  • 01-06-2021

Answer:

x=8 y=21

Step-by-step explanation:

7x+12=12x-28

x=8

plug in x

12x8-21=68

68+9y-77=180

y=21

Answer Link

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