1) x + 2 7/16 = 5 3/16;
х = 5 3/16 - 2 7/16;
х = 2 4/16 = 2 1/4 = 2,25;
ответ: 2,25.
2) 4 5/14 - (x - 7 3/14) = 2 9/14;
4 5/14 - х + 7 3/14 = 2 9/14;
-х = 2 9/14 - 4 5/14 - 7 3/14;
-х = -1 4/14 - 7 3/14 = - 8 7/14;
х = 8 7/14 = 8,5.
ответ: 8,5.
