3x+7/10=7x-2/16
2x-5/5-3x-2/4=5-2x/12
2x-5/3-5x+4/2=1-5x/4+5x+2/6

1.(7-3)*х=7/10+2/16= (7*4+2*5)/40 = 38/40х=3,82.2х-3х+2х/12=5+5/5+2,4=8,4(2*12-3*12+2)х/12=8,4;    х=8,4*12/(-10) = -10,083.(2-5+5/4-5)*х=5/3-4/2+1+2/6-6,75х=1;      х=1/(-6,75) ≈0,148