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annonymous2415 annonymous2415
  • 02-12-2016
  • Mathematics
Answered

please help! i don't understand

please help! i don t understand class=

Verified Answer :

ganjabihh ganjabihh
  • 02-12-2016

(6x+30)° = (9x-15)°
-30 -30
(6x)° = (9x -45)°
-9x -9x
-3x = -45
÷-3 ÷-3
x = 15

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