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ludaкоз
@ludaкоз
July 2022
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mod(2x-1)+6x=mod(2x-4)-21
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sedinalana
Verified answer
|2x-1|+6x=|2x-4|-21
1)x<1/2
-2x+1+6x=-2x+4-21
4x+2x=-17-1
6x=-18
x=-3
2)1/2≤x≤2
2x-1+6x=-2x+4-21
8x+2x=-17+1
10x=-16
x=-1,6 не удов усл
3)x>2
2x-1+6x=2x-4-21
8x-2x=-25+1
6x=-24
x=-4 не удов усл
Ответ х=-3
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ludaкоз
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Answers & Comments
Verified answer
|2x-1|+6x=|2x-4|-211)x<1/2
-2x+1+6x=-2x+4-21
4x+2x=-17-1
6x=-18
x=-3
2)1/2≤x≤2
2x-1+6x=-2x+4-21
8x+2x=-17+1
10x=-16
x=-1,6 не удов усл
3)x>2
2x-1+6x=2x-4-21
8x-2x=-25+1
6x=-24
x=-4 не удов усл
Ответ х=-3