Question

выполни умножение
а) 5 12 * 2 211
б)1 35 * 2 524

Answer 1

5 1/2 * 2 2/11 = 11/2 * 24/11 = 12

1 3/5 * 2 5/24 = 8/5 * 53/24 = 53/15 = 4 8/15

5х + 12 = 3х - 2
5х - 3х = -2 -12
2х = -14
Х= -14 : 2
Х= -7