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Sagot :

Réponse :

Explications étape par étape :

Bonjour

(2/3) ((1/5) x - 2) + 7/15 = (2/5) x - 1/3

(2/3) (1/5) x - 2 × (2/3) + 7/15 = (2/5)x - 1/3

(2/15) x - 4/3 + 7/15 = (2/5) x - 1/3

(2/15) x - 20 /15 + 7/15 = (6/15)x - 5/15

(2/15) x - 13/15 = (6/15) x - 5/15

2 x - 13 = 6 x - 5 j'ai multiplié a gauche et a droite par 15

- 13 + 5 = 6x - 2x

- 8 = 4x

-8/4 = x

-2 = x

(2x -3 ) / 4 = (3x + 1)/ 5

5 (2x -3) = 4 (3x + 1)

10x - 15 = 12 x + 4

- 15 - 4 = 12x - 10x

- 19 = 2x

-19/2 = x

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