б) -2 2/5 *(-3/8x + 1/4)= 4,5

-12/5*(-3/8х+1/4)=4,51/4-3/8х=4,5/(-12/5)1/4-3/8х=-15/8-3/8х=-15/8-1/4-3/8х=-17/8х=17/8*8/3х=17/3минусы ушли