34,2-(17,9-а)=22,
17,9-а=34,2-22,
а=17,9-12,2,
а=5,7
r+16,23-15,8=7,1,
16,5-(t+3,4)=4,9,
t+3,4=16,5-4,9,
t=11,6-3,4,
t=8,2
34,2-(17,9-а)=22,
17,9-а=34,2-22,
а=17,9-12,2,
а=5,7
r+16,23-15,8=7,1,
r=7,1+15,8-16,23 r=6,6716,5-(t+3,4)=4,9,
t+3,4=16,5-4,9,
t=11,6-3,4,
t=8,2