Ответ:
-1 и 2
Пошаговое объяснение:
3|2x - 1| = 2 + 7
3|2x - 1| = 9
|2x - 1| = 9 : 3
|2x - 1| = 3
1) 2x - 1 = -3
2x = -3 + 1
2x = -2
x = -2 : 2
x = -1
2) 2x - 1 = 3
2x = 3 + 1
2x = 4
x = 4 : 2
x = 2
3×|2х-1|-7=2
3*|2x-1|=2+7
3*|2x-1|=9
|2x-1|=9:3
2x-1=3 2х-1=-3
2х=3+1 2х=-3+1
х=4:2 2х=-2
х=2 х=-2:2
х=-1
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Ответ:
-1 и 2
Пошаговое объяснение:
3|2x - 1| = 2 + 7
3|2x - 1| = 9
|2x - 1| = 9 : 3
|2x - 1| = 3
1) 2x - 1 = -3
2x = -3 + 1
2x = -2
x = -2 : 2
x = -1
2) 2x - 1 = 3
2x = 3 + 1
2x = 4
x = 4 : 2
x = 2
Ответ:
Пошаговое объяснение:
3×|2х-1|-7=2
3*|2x-1|=2+7
3*|2x-1|=9
|2x-1|=9:3
2x-1=3 2х-1=-3
2х=3+1 2х=-3+1
х=4:2 2х=-2
х=2 х=-2:2
х=-1