а) 200-х=0,987
х= 200- 0,987
х= 199,013
б) (5,2+m)+1,06=13,012
5,2+m=13,012 -1,06
5,2+m=11,952
m= 11,952 -5,2
m= 6, 752
а) 200-х=0,987
х= 200- 0,987
х= 199,013
б) (5,2+m)+1,06=13,012
5,2+m=13,012 -1,06
5,2+m=11,952
m= 11,952 -5,2
m= 6, 752