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Sagot :

MARGESIMPSON1

Bonsoir,

Résoudre les équations :

A. -2x+7 = -x+9

A. -2x+x = 9-7

A. -x = 2

A. x = -2

B. 4x:15 = 7x+24

B. -101x = 360

B. x = -360/101

C. -7x-12 = 8x+3

C. -7x-8x = 3+12

C. -15x = 15

C. x = -1

D. 7x+13 = -3x-7

D. 7x+3x = -7-13

D. 10x = -20

D. x = -2

Bonne soirée.

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