Пошаговое объяснение:
6 - (х - 3 7/10) = 7 5/20 - 2 16/20
6 - (х - 3 7/10) = 6 25/20 - 2 16/20
6 - (х - 3 7/10) = 4 9/20
х - 3 7/10 = 6 - 4 9/20
х - 3 7/10 = 5 20/20 - 4 9/20
х - 3 7/10 = 1 11/20
х = 1 11/20 + 3 7/10
х = 1 11/20 + 3 14/20
х = 4 25/20
х = 5 5/20
х = 5 1/4
6 3/5х = 26/9 * 33/26 * 6/5
6 3/5х = 33/9 * 6/5
6 3/5х = 11/3 * 6/5
6 3/5х = 11/1 * 2/5
33/5х = 22/5
х = 22/5 : 33/5
х = 22/5 * 5/33
х = 22/33
х = 2/3
Пошаговое объяснение:
6 - (х - 3 7/10) = 7 5/20 - 2 16/20
6 - (х - 3 7/10) = 6 25/20 - 2 16/20
6 - (х - 3 7/10) = 4 9/20
х - 3 7/10 = 6 - 4 9/20
х - 3 7/10 = 5 20/20 - 4 9/20
х - 3 7/10 = 1 11/20
х = 1 11/20 + 3 7/10
х = 1 11/20 + 3 14/20
х = 4 25/20
х = 5 5/20
х = 5 1/4
6 3/5х = 26/9 * 33/26 * 6/5
6 3/5х = 33/9 * 6/5
6 3/5х = 11/3 * 6/5
6 3/5х = 11/1 * 2/5
33/5х = 22/5
х = 22/5 : 33/5
х = 22/5 * 5/33
х = 22/33
х = 2/3