Pré-algèbre Exemples

$3 \cdot (X + 5) = 3 \cdot X + 15$

Étape 1

Simplifiez $3 \cdot (X + 5)$ .

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Étape 1.1

Appliquez la propriété distributive.

$3 X + 3 \cdot 5 = 3 \cdot X + 15$

Étape 1.2

Multipliez $3$ par $5$ .

$3 X + 15 = 3 \cdot X + 15$

$3 X + 15 = 3 X + 15$

Étape 2

Représentez chaque côté de l’équation. La solution est la valeur x du point d’intersection.

$X \approx - 47.4, - 47.3, - 47, - 46.9, - 46.6, - 46.5, - 46.1\overline{9}, - 46.0\overline{9}, - 45.7\overline{9}, - 45.6\overline{9}, - 45.3\overline{9}, - 45.2\overline{9}, - 45, - 44.8\overline{9}, - 44.5\overline{9}, - 44.4\overline{9}, - 44.1\overline{9}, - 44.0\overline{9}, - 44, - 43.7\overline{9}, - 43.6\overline{9}, - 43.3\overline{9}, - 43.2\overline{9}, - 43, - 42.8\overline{9}, - 26.2\overline{9}, - 26.1\overline{9}, - 26, - 25.8\overline{9}, - 25.7\overline{9}, - 25.6\overline{9}, - 25.5\overline{9}, - 25.4\overline{9}, - 25.3\overline{9}, - 25.2\overline{9}, - 25.1\overline{9}, - 24.8\overline{9}, - 24.7\overline{9}, - 24.6\overline{9}, - 24.5\overline{9}, - 24.2\overline{9}, - 24.1\overline{9}, - 24.0\overline{9}, - 24, - 23.8\overline{9}, - 23.7\overline{9}, - 23.4\overline{9}, - 23.3\overline{9}, - 23.2\overline{9}, - 23.1\overline{9}, - 23.0\overline{9}, - 23, - 22.8\overline{9}, - 22.7\overline{9}, - 22.6\overline{9}, - 22.5\overline{9}, - 22.4\overline{9}, - 22.3\overline{9}, - 22.2\overline{9}, - 22.1\overline{9}, - 22.0\overline{9}, - 22, - 21.8\overline{9}, - 21.7\overline{9}, - 21.4\overline{9}, - 21.3\overline{9}, - \frac{31}{2}, - 15.3\overline{9}, - 15.0\overline{9}, - 15, - 14.8\overline{9}, - 14.7\overline{9}, - 14.6\overline{9}, - 14.5\overline{9}, - \frac{29}{2}, - 14.3\overline{9}, - 14.2\overline{9}, - 14.1\overline{9}, - 14.0\overline{9}, - 13.8\overline{9}, - 13.7\overline{9}, - 13.6\overline{9}, - 13.5\overline{9}, - \frac{27}{2}, - 13.3\overline{9}, - 13.1\overline{9}, - 13.0\overline{9}, - 12.8\overline{9}, - 12.7\overline{9}, - 12.6\overline{9}, - 12.5\overline{9}, - \frac{25}{2}, - 12.2\overline{9}, - 12.1\overline{9}, - 12.0\overline{9}, - 12, - 11.2\overline{9}, - \frac{56}{5}, - 11.0\overline{9}, - 11, - \frac{54}{5}, - 10.6\overline{9}, - 10.2\overline{9}, - 10.0\overline{9}, - 10, - 9.9, - \frac{49}{5}, - \frac{48}{5}, - \frac{19}{2}, - \frac{47}{5}, - 9.3, - 9.1, - 9, - 8.9, - \frac{44}{5}, - 8.7, - \frac{43}{5}, - \frac{17}{2}, - \frac{42}{5}, - 8.3, - \frac{41}{5}, - 8.1, - 8, - 7.9, - \frac{39}{5}, - 7.7, - \frac{38}{5}, - \frac{15}{2}, - \frac{37}{5}, - 7.3, - \frac{36}{5}, - 7.1, - 7, - 6.9, - \frac{34}{5}, - 6.7, - \frac{33}{5}, - \frac{13}{2}, - \frac{32}{5}, - 6.3, - \frac{31}{5}, - 6.1, - 6, - 5.9, - \frac{29}{5}, - 5.7, - \frac{28}{5}, - \frac{11}{2}, - \frac{27}{5}, - 5.3, - \frac{4}{5}, - 0.7, - \frac{3}{5}, - \frac{1}{2}, - 0.3, - \frac{1}{5}, - 0.1, 0, 0.1, 0.3, \frac{2}{5}, \frac{1}{2}, 0.7, \frac{4}{5}, 0.9, 1, 1.1, \frac{6}{5}, 1.3, \frac{7}{5}, \frac{3}{2}, \frac{8}{5}, 1.7, \frac{9}{5}, 2, 2.1, \frac{11}{5}, \frac{12}{5}, \frac{5}{2}, 2.7, \frac{14}{5}, 3, \frac{16}{5}, 3.3, \frac{7}{2}, 3.7, \frac{19}{5}, 3.9, 4.1, \frac{21}{5}, 4.3, \frac{22}{5}, \frac{9}{2}, \frac{23}{5}, 4.7, \frac{24}{5}, 4.9, 5, 5.1, \frac{26}{5}, 5.3, \frac{27}{5}, \frac{29}{5}, 5.9, 6, 6.1, \frac{32}{5}, \frac{13}{2}, \frac{33}{5}, 6.7, \frac{34}{5}, 6.9, \frac{36}{5}, 7.3, \frac{37}{5}, \frac{15}{2}, \frac{38}{5}, 7.7, 8, 8.1, \frac{41}{5}, 8.3, \frac{42}{5}, \frac{17}{2}, \frac{44}{5}, 8.9, 9, 9.1, \frac{46}{5}, 9.3, \frac{48}{5}, 9.7, \frac{53}{5}, 10.7, 11.1, 11.3, \frac{57}{5}, \frac{23}{2}, \frac{58}{5}, \frac{59}{5}, 11.9, 12, 12.1, 12.3, \frac{62}{5}, \frac{25}{2}, 12.6, 12.8, 12.9, 13, 13.1, 13.3, \frac{27}{2}, 13.6, 13.7, 13.8, 14, 14.1, 14.2, 14.3, \frac{29}{2}, 14.7, 14.8, 15, 15.2, 15.3, 15.4, \frac{31}{2}, 15.7, 15.9, 16, 16.7, 16.8, 17.1, 17.2, \frac{35}{2}, 17.6, 17.9, 18, 18.3, 18.4, 18.7, 18.8, 19.1, 19.2, 19.5, 19.6, 19.9, 20, 20.7, 20.8, 21.1, 21.2, 27.1, 27.2, 27.3, 27.4, 27.5, 27.6, 27.7, 27.8, 27.9, 28, 28.1, 28.2, 28.3, 28.4, 28.5, 28.6, 28.7, 28.8, 28.9, 29, 29.1, 29.2, 29.3, 29.4, 29.5, 29.6, 29.7, 29.8, 29.9, 30, 30.1, 30.2, 30.3, 30.6, 30.7, 30.8, 30.9, 31, 31.1, 31.2, 31.3, 31.4, 31.5, 31.6, 31.7, 31.8, 31.9, 32, 37.8, 37.9, 38.2, 38.3, 38.6, 38.7, 39, 39.1, 39.4, 39.5, 39.8, 39.9, 40.2, 40.3, 40.6, 40.7, 41, 41.1, 41.4, 41.5, 41.8, 41.9, 42.2, 42.3, 42.6, 42.7$

Étape 3