Bonjour,
6x+12 = 6(x+2) =3(2x+4) = 7x+5-(x -7) = x +5(x +2)+2
6x+12 6x+12 7x +5 -x +7 x +5x +10 +2
6x +12 6x + 12
6x+4 = 2(2+3x)
4x +6x
5x+7
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Bonjour,
6x+12 = 6(x+2) =3(2x+4) = 7x+5-(x -7) = x +5(x +2)+2
6x+12 6x+12 7x +5 -x +7 x +5x +10 +2
6x +12 6x + 12
6x+4 = 2(2+3x)
4x +6x
5x+7