7 3/10+x=15 7/10 a-7 9/13=3 4/13 10 11/15-(m+3 2/15)=6 4/15 С решением,
1) 7,3 + х = 15 х = 15-7,3 х = 7,7 2) 0,7а - 7 9/13 = 3 4/13 0,7а = 7 9/13 + 3 4/13 0,7а = 11 а = 11/0,7 а = 15 5/7 3) 38/5 - м = 94/15 м = 4/3 м = 1 1/3
7 3/10+x=15 7/10 x = 15 7/10 - 7 3/10 x = 8 4/10 a-7 9/13=3 4/13 a = 3 4/13 + 7 9/13 a = 10 13/13 a=11 10 11/15-(m+3 2/15)=6 4/15 10 11/15 - m - 3 2/15 = 6 4/15 7 9/15 - m = 6 4/15 m = 7 9/15 - 6 4/15 m = 1 5/15 m = 1 1/3