Задача Задача №731685
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А
Решение: 18(18 - 7) - 20(2x + 20) - 8 = 19(19 - 3x) - 25(x + 25) 324 - 110x - 400 - 8 = 361 - 57x - 625 -110x - 84 = -57x - 264 -110x + 57x = -264 + 84 -53x = -180 x = 180/53
Решение: 18(18 - 7) - 20(2x + 20) - 8 = 19(19 - 3x) - 25(x + 25) 324 - 110x - 400 - 8 = 361 - 57x - 625 -110x - 84 = -57x - 264 -110x + 57x = -264 + 84 -53x = -180 x = 180/53
