А)1/2x+3/4=7/16x-5/8 б)2/3-1/6x=7/12x+5/9 в)1/5x+9/10=1/15-3/10x - вопрос №343932712347165823167125915910115310718345 от dickosh97 14.02.2020 10:39

Question

Математика: А)1/2x+3/4=7/16x-5/8 б)2/3-1/6x=7/12x+5/9 в)1/5x+9/10=1/15-3/10x г)7/18-3/4x=5/6x+4/9 решите

dickosh97 · Answer

А)1/2x + 3/4 = 7/16x - 5/81/2x - 7/16x = -5/8 - 3/4 | * 168x-7x=-10-12x = -22б) 2/3 - 1/6x = 7/12x + 5/9-1/6x - 7/12x = 5/9 - 2/3 | * 36-6x - 21x = 20 - 24;-27x = 4x = -4/27в)1/5x + 9/10 = 1/15 - 3/10x1/5x + 3/10x = 1/15 - 9/10 | * 306x + 9x = 2 - 2715 x = -25x = -25/15 = -1 1/3г) 7/18 - 3/4x = 5/6x + 4/9-3/4x - 5/6x = 4/9 - 7/18 | * 36-27x - 30x = 16 - 14-57x = -2x = 2/57...