Bonjour,
Développer les expressions:
2(x-7)= 2x-14
3(-x+1)= -3x+3
Résoudre:
2(x-7)= 3(-x+1)
2x-14= -3x+3
2x+3x= 3+14
5x= 17
x= 17/5
S= { 17/5 }
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Bonjour,
Développer les expressions:
2(x-7)= 2x-14
3(-x+1)= -3x+3
Résoudre:
2(x-7)= 3(-x+1)
2x-14= -3x+3
2x+3x= 3+14
5x= 17
x= 17/5
S= { 17/5 }