Rozwiąż równanie :
... / * 120
40 * 2(x - 4) + 15 * (3x + 13) = 24 * 3(2x - 3) - 120 * 7
80(x - 4) + 15(3x +13) = 72(2x -3) - 840
80x - 320 + 45x + 195 = 144x - 216 - 840
125x - 144x = -1056 + 320 - 195
-19x = -931
x = 49
licze na naj
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... / * 120
40 * 2(x - 4) + 15 * (3x + 13) = 24 * 3(2x - 3) - 120 * 7
80(x - 4) + 15(3x +13) = 72(2x -3) - 840
80x - 320 + 45x + 195 = 144x - 216 - 840
125x - 144x = -1056 + 320 - 195
-19x = -931
x = 49
licze na naj