Ответ:

1 1/2

Пошаговое объяснение:

5/8 /(1/2m - 1/4) - 1/2 = 3/4

5/8 /(1/2m - 1/4) = 3/4 + 1/2

5/8 /(1/2m - 1/4) = 3/4 + 2/4

5/8 /(1/2m - 1/4) = 5/4

1/2m - 1/4 = 5/8 : 5/4

1/2m - 1/4 = 5/8 * 4/5

1/2m - 1/4 = 1/2 * 1/1

1/2m - 1/4 = 1/2

1/2m = 1/2 + 1/4

1/2m = 2/4 + 1/4

1/2m = 3/4

m = 3/4 : 1/2

m = 3/4 * 2/1

m = 6/4

m = 3/2

m = 1 1/2