5(8x+3)-12=83решите уравнения
5(8х + 3) - 12 = 83 5(8х + 3) = 83 + 12 5(8х + 3) = 95 8х + 3 = 95 : 5 8х + 3 = 19 8х = 19 - 3 8х = 16 х = 16 : 2 х = 2 -------------- Проверка: 5(8 * 2 + 3) - 12 = 83 5 * 19 - 12 = 83 95 - 12 = 83 83 = 83
40х+15-12=83 40х=80 х=2