1/4х-х-15 = 4
1/4х-х=19
-3/4x =19
х= - 25 1/3 (76/3)
Проверка -25 1/3 */14 +25 1/3 -15 = -76/12 + 304/12 -15= 228/12 - 15 = 4
1/4х-х-15 = 4
1/4х-х=19
-3/4x =19
х= - 25 1/3 (76/3)
Проверка -25 1/3 */14 +25 1/3 -15 = -76/12 + 304/12 -15= 228/12 - 15 = 4