(A + B + y + 100 = 360
(A/2 + B/2 + y - 25 = 180 (*2)
A + B + 2y - 50 = 360 (I)
A + B + y + 100 = 360 (II) (I)-(II)
y - 150 = 0
y = 150
pronto
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(A + B + y + 100 = 360
(A/2 + B/2 + y - 25 = 180 (*2)
A + B + 2y - 50 = 360 (I)
A + B + y + 100 = 360 (II) (I)-(II)
y - 150 = 0
y = 150
pronto