Respuesta :

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Answer:

RT= 42

Step-by-step explanation:

R___T____S

RS=RT+ST

68 = (4x-6 ) + ( 2x+2)

68= 6x –4

6x=68+4

6x=72

x=72/6

x= 12

RT= (4x - 6) = 4(12) - 6= 48 - 6 = 42

I hope I helped you^_^