Respuesta :

ghaithgh

Answer:

x = 7

Step-by-step explanation:

RT= RS+ST

70 = (7x +2 ) + (2x+5)

70 = 9x + 7

9x= 70 - 7

9x = 63

x= 63/ 9

x = 7

I hope I helped you^_^

spammingallowed

Answer:

[tex]given \: that \: total \: length \: rt = 70 \\ \: then \: rs + st = rt \\ 7x + 2 + 2x + 5 = 70 \\ 9x + 7 = 70 \\ 9x = 63 \\ x = \frac{63}{9} \\ x = 7 \\ thank \: you[/tex]

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