Réponse :
Explications étape par étape
Bonjour
Developper :
4(x + 5) = 10x + 3
4x + 20 = 10x + 3
20 - 3 = 10x - 4x
17 = 6x
x = 17/6
3(x - 2) = 6(x + 4)
3x - 6 = 6x + 24
-24 - 6 = 6x - 3x
-30 = 3x
x = -30/3
x = -10
7x - (5x + 3) = 5(x - 3) + 2
7x - 5x - 3 = 5x - 15 + 2
2x - 3 = 5x - 13
5x - 2x = 13 - 3
3x = 10
x = 10/3
4y + 3(4y - 2) = 3(y + 1)
4y + 12y - 6 = 3y + 3
16y - 3y = 3 + 6
13y = 9
y = 9/13
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Réponse :
Explications étape par étape
Bonjour
Developper :
4(x + 5) = 10x + 3
4x + 20 = 10x + 3
20 - 3 = 10x - 4x
17 = 6x
x = 17/6
3(x - 2) = 6(x + 4)
3x - 6 = 6x + 24
-24 - 6 = 6x - 3x
-30 = 3x
x = -30/3
x = -10
7x - (5x + 3) = 5(x - 3) + 2
7x - 5x - 3 = 5x - 15 + 2
2x - 3 = 5x - 13
5x - 2x = 13 - 3
3x = 10
x = 10/3
4y + 3(4y - 2) = 3(y + 1)
4y + 12y - 6 = 3y + 3
16y - 3y = 3 + 6
13y = 9
y = 9/13