Тк 3/3 = 12x-1-2=7x+0.82x-7x=1+2+0.8-5x=3.8x=-0.76
2x-3/3-2=7x+4/5
2х-1-2=7х+4/5
2х-7х=4/5+3
-5х=3 4/5
х=19/5:(-5)
х=-19/25 =-0,76
Тк 3/3 = 1
2x-1-2=7x+0.8
2x-7x=1+2+0.8
-5x=3.8
x=-0.76
2x-3/3-2=7x+4/5
2х-1-2=7х+4/5
2х-7х=4/5+3
-5х=3 4/5
х=19/5:(-5)
х=-19/25 =-0,76