решите уравнение 3х/3+2х/15=2 2х-3/5+3х/10-1-2х/3

3х/3 + 2х/15 = 2;

(3х * 5 + 2х * 1)/15 = 2;

(15х + 2х)/15 = 2;

15х + 2х = 15 * 2;

17х = 30;

х = 30 : 17;

х = 30/17;

х = 1 13/17.

Ответ: 1 13/17.

2х - 3/5 + 3х/10 - 1 - 2х/3 = 2х + 3х/10 - 2х/3 - 3/5 - 1 = (2х * 30 + 3х * 3 - 2х * 10)/30 - 1 3/5 = (60х + 9х - 20х)/30 - 1 3/5 = 49х/30 - 1 3/5 = 1 19х/30 - 1 3/5.