3/4 : (1/8 x + 3/8) - 1/2 = 5/14
3/4:1/8(х+3)-1/2=5/14
3/4:(1/8х+3/8)=5/14+7/14
3/4:(1/8х+3/8)=12/14
1/8х+3/8=3/4:6/7
1/8х+3/8=7/8
1/8х=7/8-3/8
1/8х=4/8
х=4/8:1/8
х=4
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3/4:1/8(х+3)-1/2=5/14
3/4:(1/8х+3/8)=5/14+7/14
3/4:(1/8х+3/8)=12/14
1/8х+3/8=3/4:6/7
1/8х+3/8=7/8
1/8х=7/8-3/8
1/8х=4/8
х=4/8:1/8
х=4