Respuesta :

sqdancefan
The sum of adjacent angles is 180°.

(3y -20) +(2y +15) = 180
5y -5 = 180
y -1 = 36
y = 37

Opposite angles are equal.

5x -14 = 2y +15
5x = 2y +29
x = 0.4 y +5.8
x = 0.4*37 +5.8 = 20.6 . . . . . . . selection A is appropriate

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