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Sagot :

AYUDA

bsr

but du jeu : isoler x

x + 5 = 2x + 1

x + 5 - 5 = 2x + 1 - 5

x = 2x - 4

x - 2x = 2x - 2x - 4

-x = -4

x = 4

et

5x - 3 = 2x + 7

5x - 3 + 3 = 2x + 7 + 3

5x = 2x + 10

5x - 2x = 2x - 2x + 10

3x = 10

3x/3 = 10/3

x = 10/3

bonne soirée

SKABETIX

Bonjour,

x + 5 = 2x + 1

5 - 1 = 2x - x

x = 4

5x - 3 = 2x + 7

5x - 2x = 7 + 3

3x = 10

x = 10/3

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