Juanjaramillo649go Juanjaramillo649go Matemáticas contestada 2 3 2012. (12) (5)(xy"") B)(157) 81-2:-)(6ry"(-7 DIVISIONES 112 + 4x 2 (18 x'Y*Z') + 6xY 6.4.2 3 3rd pt2 3.ry cold petro واني اياه 12'y + 18ry - 487 hry