Bonsoir,
Hassan: x
Aicha : 3x
10 MAD de plus
3x+10 et x+10
3x+10 = 2(x+10)
3x+10 = 2x+20
3x-2x = 20 -10
x = 10
Hasan: 10 MAD
Aicha: 30 MAD
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Bonsoir,
Hassan: x
Aicha : 3x
10 MAD de plus
3x+10 et x+10
3x+10 = 2(x+10)
3x+10 = 2x+20
3x-2x = 20 -10
x = 10
Hasan: 10 MAD
Aicha: 30 MAD