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НоВыЙ13
@НоВыЙ13
July 2022
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ДАЮ 15 БАЛЛОВ!
Решите уравнение:
| 2x-8 | - | x+5 | = 12
где | <--- модуль!
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mikael2
Verified answer
2x-8=0 x=4 x+5=0 x=-5
----------- -5------------------ 4-------------
x< -5 8-2x-(-x-5)=8-2x+x+5=13-x=12 x=13-12=1 не подх.
-5 ≤ x<4 -2x+8-x-5=-3x+3=12 -x+1=4
x=1-4=-3
x≥4 2x-8-x-5=x-13=12
x=25
x=-3, x=25
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Answers & Comments
Verified answer
2x-8=0 x=4 x+5=0 x=-5----------- -5------------------ 4-------------
x< -5 8-2x-(-x-5)=8-2x+x+5=13-x=12 x=13-12=1 не подх.
-5 ≤ x<4 -2x+8-x-5=-3x+3=12 -x+1=4 x=1-4=-3
x≥4 2x-8-x-5=x-13=12 x=25
x=-3, x=25