1,4m-0,3n, если m=2.6; n=5.09
1.4m-0.3n при m=2,6, n=5,09 1,4*2,6-0,3*5,09=3,64-1,527=2,113
1,4*2,6-0,3*5,09=3,64-1,527=2,113