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menshikovavlad
@menshikovavlad
July 2022
2
7
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Решите уравнение:
б)-5х+3(3+2х)=7
в)30-х=3(20-х)
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gisinova
Б) -5Х+9+6Х=7 , Х=-2 В) 30-Х=60-3Х 2Х=30 Х=15
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ситуация
-5х+3(3+2х)=7; -5х+9+6х=7; 6х-5х=7-9; х=-2.
30-х=3(20-х); 30-х=60-3х; 3х-х=60-30; 2х=30; х=15.
1 votes
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Answers & Comments
30-х=3(20-х); 30-х=60-3х; 3х-х=60-30; 2х=30; х=15.