Решите уравнения: а) 7х+13=-5х+25 б) х+5(2-4х)=29 в) 1/2х+1=-1/3(х+3/4). Created by Alina4500. matematika-ru

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June 2022 1 36 Report

Решите уравнения:
а) 7х+13=-5х+25 б) х+5(2-4х)=29
в) 1/2х+1=-1/3(х+3/4)

Answers & Comments

liya4ka01 А) 7х+13=-5х+25
7х+5х=-13+25
12х=12
х=1
б)х+5(2-4х)=29
х+10-20х=29
-19х=-10+29
х=-1
в)1/2х+1=1/3(х+3/4)
1/2х+1=1/3х+13/12
1/2х-1/3х=-1+13/12
1/6х=1/12
х=1/12*6/1
х=1/2=0,5

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kakie territorii ohvatila grecheskaya kolonizaciya

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