Question

( x + 4 2/7 ) - 3 6/7 = 6
9 5/13 - ( 7 6/13 - y ) = 2 3/13
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Answer 1

х+42/7=6+3 6/7
х+42/7=9 6/7
х=9 6/7-4 2/7
х=5 4/7
5 4/7+4 2/7-3 6/7=6
6=6

76/13-у=95/13-23/13
76/13-у=72/13
у=76/13-72/13
у=4
95/13-(76/13-4)=23/13
95/13-72/13=23/13
23/13=23/13