beauty1211 beauty1211

26-02-2020
Mathematics

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Respuesta :

laurellee27 laurellee27

26-02-2020

Answer:

A = 120

C = 45

Step-by-step explanation:

(12x + 12) + 15 + (3x + 18) = 180

(12x + 3x) + (12 + 15 + 18) = 180

15x + 45 = 180

15x = 180 - 45

15x = 135

x = 135/15

x = 9

A = 12x + 12 = 12(9) + 12 = 108 + 12 = 120

C = 3x + 18 = 3(9) + 18 = 27 + 18 = 45

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