Решите уравнения
(4,5у+9)-(6,2-3,1у)=7,2у+2,8
х-0,5=2(0,3х-0,2)
2/3(1/3х-1/2)=4х+2 1/2

4.5y+9-6,2+3,1y=7,2y+2,84,5y+3,1y-7,2y=2,8-9+6,20,4y=0y=0x-0,5=0,6x-0,4x-0,6x=0,5-0,40,4x=0,1x=0,252x/9-1/3=4x/1+5/22x/9-4x/1=5/2+1/3-3 7/9x=2 5/6x=-3/4