25x+15x=8m+m=z+19z=12y-2y=0=7a+4b=10x+43
40x=9m=20z=10y=7a+4b=10x+43
30x=9m=20z=10y=7a+4b=43
1. титан
2. натрий
1. 1,8+0,32=2,12 2,1-0,088=2,012 2,02+0,001=2,021
7,61-5,4=2,21 7,002-4,9=2,102
2. 9,25-3,9=5,35 103,03-99,5=3,53 3,273+1,78=4,973
13,103-7,6=5,503 6-2,9947=3,0053 4,2+0,8305=5,0305