Respuesta :

texaschic101
15 + x + 2x + 120 - 2x = 180
x + 135 = 180
x = 180 - 135
x = 45

** all ur angles, when added together, make a straight line and are therefore equal to 180 degrees
the circle degree is 360 
we will work only in the first part wich means
360 divided by two is 180 
so we will apply a first easy degree  equation 
15 + x + 2x + 120 - 2x = 180
135 + X = 180
 X = 45
and then you will replace 
2X =90
120-2x=180
X=30

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