Предмет: Алгебра, автор: Ilyasssssss

|x-10|=x/2+a
Найдите значение а если уравнение имеет единственное решение.

Ответы

Автор ответа: pentV
0
x-10=x/2+a        x/2=10+a     x=20+2a         3x=60+6a
10-x=x/2+a       3x/2=10-a    3x=20-2a         3x=20-2a        отсюда

60+6а=20-2а
 8а=-40
  а=-5
 
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