17/25-(3/25+х)=8/25
3/25+х=17/25-8/25
3/25+х=9/25
х=9/25-3/25
х=6/25
3/25+x=17/25-8/25
3/25+x=9/25
x=9/25-3/25
x=6/25
17/25-(3/25+х)=8/25
3/25+х=17/25-8/25
3/25+х=9/25
х=9/25-3/25
х=6/25
3/25+x=17/25-8/25
3/25+x=9/25
x=9/25-3/25
x=6/25