5, 5, -2,1 и 4
Пошаговое объяснение:
4(х-6)=х-9
4х-24=х-9
4х-х=24-9
3х=15
х=5
6,8-1,3х=0,6х-2,7
-1,3-0,6=-6,8-2,7
-1,9х=-9,5
х=5
3,5-х=8(х+2,8)
3,5-х=8х+22,4
-х-8х=22,4-3,5
-9х=18,9
х=-2,1
8-4х=2х-16
-4х-2х=-8-16
-6х=-24
х=4
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Пошаговое объяснение:
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Пошаговое объяснение: