|x+3| - |2x+1| = 5
раскрытие модулей
|x + 3| |2x + 1|
x <= -3 -(x + 3) -(2x + 1)
-3<x< -1/2 x + 3 -(2x + 1)
x >= -1/2 x + 3 2x + 1
1. x <= -3
-(x + 3) +(2x + 1) = 5
-x - 3 + 2x + 1 = 5
x = 7 нет
2. -3<x< -1/2
x + 3 + (2x + 1) = 5
x + 3 + 2x + 1 = 5
3х = 1
x = 1/3 нет
3. x >= -1/2
x + 3 - 2x - 1 = 5
х = -3 нет
Решений нет
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Verified answer
|x+3| - |2x+1| = 5
раскрытие модулей
|x + 3| |2x + 1|
x <= -3 -(x + 3) -(2x + 1)
-3<x< -1/2 x + 3 -(2x + 1)
x >= -1/2 x + 3 2x + 1
1. x <= -3
-(x + 3) +(2x + 1) = 5
-x - 3 + 2x + 1 = 5
x = 7 нет
2. -3<x< -1/2
x + 3 + (2x + 1) = 5
x + 3 + 2x + 1 = 5
3х = 1
x = 1/3 нет
3. x >= -1/2
x + 3 - 2x - 1 = 5
х = -3 нет
Решений нет