Répondre :
a) 4x = 6x -12
=> 4x-6x = -12
=> -2x = -12
x = 6
b) 4x+7x = 3
=>11X = 3
=> x = 3/11
c) x+3 = 15
=> x = 15/3
=> x = 5
voila :)
Résoudre les équations suivantes :
a) 4 x = 3(2x -4)
b) 4x - (3-7x) = 0
c) x+3 = 5
3
d'avance merci
a) 4x = 6x -12
=> 4x-6x = -12
=> -2x = -12
x = 6
b) 4x+7x = 3
=>11X = 3
=> x = 3/11
c) x+3 = 15
=> x = 15/3
=> x = 5
voila :)