Salut !
Résoudre les équations suivantes :
a) (2/3x + 1/3) (1/4x + 1/10) =0
b) (-7/5x + 7) (2/3x - 3/2) =0
c) (1/8x + 7/2) (3/7x+1/9) =0
d) (13/3x -5) (3x+7/6) =0
(2/3x + 1/3) (1/4x + 1/10) =0
2/3x + 1/3= 0
2x + 1/3 - 1/3 = 0 -1/3
2/3x = 0- 1/3
x= .... :-)
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(2/3x + 1/3) (1/4x + 1/10) =0
2/3x + 1/3= 0
2x + 1/3 - 1/3 = 0 -1/3
2/3x = 0- 1/3
x= .... :-)