ally2377
ally2377 ally2377
  • 23-08-2019
  • Mathematics
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Gasaqui
Gasaqui Gasaqui
  • 23-08-2019

Answer:

y =8

RS= 58

ST= 46

RT= 104

Step-by-step explanation:

we can see from the picture:

RS + ST = RT

RS =7y+2

ST=5y +6

RT= 14y -8

so we have:

7y+2 + 5y +6 = 14y -8

12y +8 = 14y -8

12y - 14y= -8-8

-2y = -16

y= 16/2

y=8

so we have:

RS =7y+2 = 7(8) +2

RS= 58

ST=5y +6 = 5(8) +6

ST= 46

RT= 14y -8 = 14(8) -8

RT= 104

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