Задача 58838 4. Решите уравнение. 4/7 y - 5 = -6 1/7...

606099ef4762ec702e64dbe1

28.03.2021 18:03:04

4. Решите уравнение.

4/7 y - 5 = -6 1/7

5f3ea7e3faf909182968ddd9

28.03.2021 19:32:33

★

[m]\frac{4}{7}y=-6\frac{1}{7}+5[/m]

[m]\frac{4}{7}y=-1\frac{1}{7}[/m]

[m]\frac{4}{7}y=-\frac{8}{7}[/m]

[m]y=-\frac{8}{7}:\frac{4}{7}[/m]

[m]y=-\frac{8}{7}\cdot \frac{7}{4}[/m]

[m]y=-2[/m]