Question

Помогите пожалуйста
1) 11/18х-2/9=5/12х+1 1/3
2) 2/3(4 1/2х-3/5)-5/7(7/15х-7/9)=-1 32/45

Answer 1

2)2/3 * (4 1/2х - 3/5) - 5/7 * (7/15х - 7/9) = - 1 32/45

2/3 * (9/2х - 3/5) - 5/7 * (7/15х - 7/9) = - 77/45

3х - 2/5 - 1/3х + 5/9 = - 77/45

3х - 1/3х = - 77/45 + 2/5 - 5/9

2 целых 2/3х = - 77/45 + 18/45 - 25/45

8/3х = - 84/45

х = - 84/45 : 8/3

х = - 84/45 * 3/8 = - (21*1)/(15*2) = - 21/30 (сократим на 3)

х = - 7/10

х = - 0,7