3(2х - 4) + 15 = 16 - 5 (2-х)
6х-12+15=16-5 6х=16-5+12-15 6х=8 Х=1,3
6х -12 +15 = 16-10+5x 6x -5x = 16-10+12-15 1x = 1 x= 1:1 x=1