23x -3 + 12x+8= 180°
what is x

23x - 3 + 12x + 8 = 180

23x + 12x + 5 = 180

35x + 5 = 180

35x = 175

x = 5

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step-by-step explanation:

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step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

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