Verified answer

Пошаговое объяснение:

№2

(2х + 10)/2 - (3х + 4)/3 = 5х | *6

3(2х + 10) - 2(3х + 4) = 6 * 5х

6х + 30 - 6х - 8 = 30х

22 = 30х

-30х = -22

х = -22 : (-30)

х = 22/30

х = 11/15

№6

(4 + 9х)/2 - (6 - 13х)/3 = 2х | * 6

3(4 + 9х) - 2(6 - 13х) = 6 * 2х

12 + 27х - 12 + 26х = 12х

53х = 12х

53х - 12х = 0

41х = 0

х = 0 : 41

х = 0