Ответ:
Х-7=2х+8
х-2х=8+7
-х=-15
Х=-15
х-7=2х+8
-х= 15
х= -15
Проверка:
-15-7=2•(-15)+8
- 22= -22
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Verified answer
Ответ:
Х-7=2х+8
х-2х=8+7
-х=-15
Х=-15
Verified answer
х-7=2х+8
х-2х=8+7
-х= 15
х= -15
Проверка:
-15-7=2•(-15)+8
- 22= -22