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nastyabalab
@nastyabalab
July 2022
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Решите уравнения:
а) 7х+13=-5х+25
б) х+5(2-4х)=29
в) 1/2х+1=-1/3(х+3/4)
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Answers & Comments
ник3709
7х+13=-5х+25;
7х+5х=25-13;
12х=12; х=1.
х+5(2-4х)=29;
х+10-20х=29;
-19х=19;
х=-1.
1/2х+1=-1/3(х+3/4);
1/2х+1=-1/3х-1/4;
1/2х+1/3х=-1/4-1;
5/6х=-5/4;
х=-5/4÷5/6;
х=-3/2; х=-1 1/2
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Answers & Comments
7х+5х=25-13;
12х=12; х=1.
х+5(2-4х)=29;
х+10-20х=29;
-19х=19;
х=-1.
1/2х+1=-1/3(х+3/4);
1/2х+1=-1/3х-1/4;
1/2х+1/3х=-1/4-1;
5/6х=-5/4;
х=-5/4÷5/6;
х=-3/2; х=-1 1/2