EXERCICE 32.
1.
2(x-7)
= 2x - 14
3(-x+1)
=-3x +3
2.
Cela revient à 2x-14= -3x+3
= 2x+3x= 3+14
5x =17
x= 17/5
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EXERCICE 32.
1.
2(x-7)
= 2x - 14
3(-x+1)
=-3x +3
2.
Cela revient à 2x-14= -3x+3
= 2x+3x= 3+14
5x =17
x= 17/5