Ответ:
8/15x + 0,3 = -7/15
8/15x = -7/15 - 0,3
8/15x = -7/15 - 3/10
8/15x = -14/30 - 9/30
8/15x = -23/30
x = -23/30 * 15/8
x = -23/16
Ответ: x = -23/16
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Ответ:
8/15x + 0,3 = -7/15
8/15x = -7/15 - 0,3
8/15x = -7/15 - 3/10
8/15x = -14/30 - 9/30
8/15x = -23/30
x = -23/30 * 15/8
x = -23/16
Ответ: x = -23/16