7/9х - 2/3х = 8 - 4 1/2х + 1/6х - х = -3
7/9х - 6/9х = 4 3/6х + 1/6х - х = - 3
1/9х = 4 4/6х - х = - 3
х = 4 : 1/9 = 4 * 9/1 -2/6х = - 3
х = 36 х = - 3 : (- 2/6) = -3 * (-6/2)
х = 36 х = 18/2 = 9
