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Sagot :

Réponse :

Bonsoir

Explications étape par étape

a)4x+5=8x-7

4x - 8x = -7-5

-4x = -12

X = -12/(-4)

X = 3

b) 2x - 3 = 4x + 36

2x - 4x = 36 + 3

-2x = 39

X = -39/2

X = -19.5

c) -4x-2=-9x- 22

-4x + 9x = -22 + 2

5x = -20

X = -20/5

X = -4

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