(9/14+4/7х)=0,04*25
9/14+8/14х=1
8/14х=1-9/14
8/14х=5/14
х=5/14:8/14
х=5/14*14/8=5/8
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(9/14+4/7х)=0,04*25
9/14+8/14х=1
8/14х=1-9/14
8/14х=5/14
х=5/14:8/14
х=5/14*14/8=5/8