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Sagot :

Bonjour.

• -2x+3/x+4 = 7

• -2x+3/x+4 = 7 ; x ≠ -4

• -2x+3 = 7(x+4)

• -2x+3 = 7x+28

• -2x+3-7x = 28

• -2x-7x = 28-3

• -9x = 28-3

• -9x = 25

• x = -25/9 ; x ≠ -4

x = -25/9

/ = fraction.

Bonne journée.

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