Решите . 1. 3/4x + 1 1/6 = 3 2/9 2. 4/7x - 2 3/5 = - вопрос №134116329247235125381531035124991259 от Flif 24.11.2020 22:19

Question

Математика: Решите . 1. 3/4x + 1 1/6 = 3 2/9 2. 4/7x - 2 3/5 = 1 2/5 3. 8/15x - 3/10x + 3/5x = 1/2

Flif · Answer

1)3/4х=3 2/9-1 1/6=29/9-7/63/4х= 37/18х=37/18÷3/4х=148/54= 2 40/54х= 2 20/272)4/7х=1 2/5+2 3/5=44/7х=4х= 4÷4/7=28/4х= 73)37/30х=1/230х=37÷1/230х=74х=2 14/74х=2 7/37...