ktaeyoun356 ktaeyoun356

20-05-2021
Mathematics

contestada

1) Solve for x.
(3.x - 2)°
(14x -19°
(9x+7)

1 Solve for x 3x 2 14x 19 9x7 class=

Respuesta :

jsace918 jsace918

20-05-2021

Answer:

x = 12

Step-by-step explanation:

We will label the unknown interior angle of the triangle d.

14x - 19 + d = 180

14x + d = 199

d = 199 - 14x

199 - 14x + 3x + 9x + 7 - 2 = 180

199 - 2x +5 = 180

204 - 2x = 180

204 = 180 + 2x

2x = 24

x = 12

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