7(2x-5)-[5(7x-2)-2(5x-7)]=-72

7(2x-5)-[5(7x-2)-2(5x-7)]=-72 14x - 35 - [35x - 10 - 10x + 14] = -72 14x - 35 - 35x + 10 + 10x - 14 = -72 -11x = -72 + 35 - 10 + 14 -11x = -33 x = 3