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1. -[43x - (89x + 39 + 3) - 8 + 41x] = -[-(-54 - 33 + 2,17x -8,18) - 2]
-[43x - 89x - 39 - 3 - 8 + 41x] = -[-(-95.18 + 2,17x) - 2]
-[-5x - 50] = -[-(-97.18 + 2,17x)]
5x + 50 = -97.18 + 2,17x
5x - 2.17x = -97.18 - 50
2.83x = -147.18
, respuesta
2. [87x - 33 - (7,89x - 0,398] = -89x - (14 + 12x)
[87x- 33 - 7,89x + 0,398] = -89x - 14 - 12x)
79.11x- 32.602 = -101x - 14
79.1x + 101x = -14 + 32.602
180.1x = 18.602
, respuesta
3. -[-12 + 15x - (1,29x + 80) -8,14] = -[48x + 3 - (66,08 + 44,77x) -115]
-[-12 + 15x - 1,29x - 80 -8,14] = -[48x + 3 - 66,08 - 44,77x -115]
-[13.71x -100.14] = -[3.23x - 178.08]
-13.71x +100.14 = -3.23x + 178.08
-3.23x +13.71x = 100.14 - 178.08
10.48x = -77.94
, respuesta
Espero sea lo que necesitas