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Step-by-step explanation:
angle cab + angle bad + angle ead = 180 degrees (angles of staright line)
thus, 1x +2x+69=180 thus, 3x = 111, thus x = 37
and angle cab = 1x = 37 degrees
angle cab + angle abc + angle bca = 180 (angles of triangle)
y+y+3+37=180
thus, 2y = 140, y = 70
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