Пошаговое объяснение:
1/4(2а - 4) - 1/3(5в + 6) =
2/4а - 4/4 - 5/3в - 6/3 =
1/2а - 1 - 5/3в - 2 =
1/2а - 3 - 5/3в
а = 2 1/2; в = 3/15
1/2а - 3 - 5/3в = 1/2 * 2 1/2 - 3 - 5/3 * 3/15 =
1/2 * 5/2 - 3 - 15/45 = 5/4 - 3 - 1/3 =
1 1/4 - 3 - 1/3 = -2 3/4 - 1/3 = -2 9/12 - 4/12 =
-2 13/12 = -3 1/12
Пошаговое объяснение:
1/4(2а - 4) - 1/3(5в + 6) =
2/4а - 4/4 - 5/3в - 6/3 =
1/2а - 1 - 5/3в - 2 =
1/2а - 3 - 5/3в
а = 2 1/2; в = 3/15
1/2а - 3 - 5/3в = 1/2 * 2 1/2 - 3 - 5/3 * 3/15 =
1/2 * 5/2 - 3 - 15/45 = 5/4 - 3 - 1/3 =
1 1/4 - 3 - 1/3 = -2 3/4 - 1/3 = -2 9/12 - 4/12 =
-2 13/12 = -3 1/12