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gresh003
@gresh003
August 2022
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решите уравнения:
1) 3(x+1)-8=12+(x-1)
2) x/4=19/8
3) является ли x=2 корнем уравнения 1/2*x-12=2(x-4)
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Answers & Comments
PechenkaDemon
1) 3х+3-8=12+х-1
3х-5=11+х
3х-х=11+5
2х=16
х=8
2) Это дробь или просто деление??
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gresh003
это дробь
PechenkaDemon
2) х*8=4*19
PechenkaDemon
8х=76
PechenkaDemon
х=76\8
PechenkaDemon
х=9,5
PechenkaDemon
3) 1\2х-12=2х-8
PechenkaDemon
1\2х-2х= -8+12
PechenkaDemon
-1 1\2х=4
PechenkaDemon
х= -2 2\3
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Answers & Comments
3х-5=11+х
3х-х=11+5
2х=16
х=8
2) Это дробь или просто деление??