Question

Решите уравнение: - 3 * ( - 2 3⁄7) = 2 Х - 2 5⁄7

Answer 1

3 • ( - 2 3/7 ) = 2x - 2 5/7
3 • ( - 17/7 ) = 2x - 19/7
- 51/7 = 2x - 19/7
2x = - 51/7 + 19/7
2x = - 32/7
X = - 32/7 : 2
X = - 16/7
X = - 2 2/7

Answer 2

- 3 * ( - 2 3⁄7) = 2 Х - 2 5⁄7
31*177=2х-197
517=2х-197
2х=517+197
2х=707
2х=10
х=10:2
х=5