bonjour;
4x/3 -7x/6 = 17/10-4/5
8x/6 = 17/10 -8/10
8x/6 = 9/10
8x = ( 9/10)*6
8x = 54/10
x = (54/10)/8
x = 54/10*1/8
x= 54/80 = 27/40
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bonjour;
4x/3 -7x/6 = 17/10-4/5
8x/6 = 17/10 -8/10
8x/6 = 9/10
8x = ( 9/10)*6
8x = 54/10
x = (54/10)/8
x = 54/10*1/8
x= 54/80 = 27/40
Faisçons produit en croix
60(20x+12)=15(70x+102)
1200x+720=1050x+1530
Rassenblons les termes x
1200x-1050x=1530-720
150x=820
Tirons x=820/150
X=162/30 simplifions par 5
X=27/5