Réponse:
-11x+4x=-74-17
-7x=-91
x=91/7
5x-12x=-272+62
-7x=-210
x=210/7
12x+8x=96+1524
20x=1620
x=1620/20
-14x+6x=-368-128
-8x=-496
x=496/8
0.5x+0.25x=428+691
0.75x=1119
x=1119/0.75
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Réponse:
-11x+4x=-74-17
-7x=-91
x=91/7
5x-12x=-272+62
-7x=-210
x=210/7
12x+8x=96+1524
20x=1620
x=1620/20
-14x+6x=-368-128
-8x=-496
x=496/8
0.5x+0.25x=428+691
0.75x=1119
x=1119/0.75