Ответ:
1) 4(х-1/2)=0
4х-1/2*4=0
4х-2=0
4х=2
х=1/2
2)8(х-3/14)=0
8х-24/14=0
8х=24/14
х=3:14
3)(х-1'3/4)*2/3=0
2/3х-1'3/4=0
2/3х=1'3/4
х=8/21
4)(х-2'1/4)*2/3=0
2/3х-2'1/6=0
2/3х=2'1/6
х=13/6:2/3
х=13/6*3/2
х=3'1/4
5)12(х-1'3/10*5/6)=0
12(х-1'/12)=0
12х-1=0
х=1/12
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Ответ:
1) 4(х-1/2)=0
4х-1/2*4=0
4х-2=0
4х=2
х=1/2
2)8(х-3/14)=0
8х-24/14=0
8х=24/14
х=3:14
3)(х-1'3/4)*2/3=0
2/3х-1'3/4=0
2/3х=1'3/4
х=8/21
4)(х-2'1/4)*2/3=0
2/3х-2'1/6=0
2/3х=2'1/6
х=13/6:2/3
х=13/6*3/2
х=3'1/4
5)12(х-1'3/10*5/6)=0
12(х-1'/12)=0
12х-1=0
х=1/12