1) 9,8x+23,7+6,2x+55,1=16х+78.8
16*8.2+78.8=210
16*0.7+78.8=90
2) (5,1а+1,38)- 3,4а=1.7а+1.38
1.7*0.6+1.38=2.4
1.7*1.8+1.38=4.44
3) 44,2b-(15,7b+23,45)=44,2b-15,7b-23,45=28.5б-23.45
28,5*0.9-23.45=2.2
28.5*1.7-23.45=25
4) 0,056m+0,044m-0,037=0.1м-0.037
0.1*3.7-0.037=0.333
0.1*0.37-0.037=0
5) 3,45n-3,44n+0,024 =0.01н+0.024
0.01*7.6+0.024=01
0.01*0.6+0.024=0.03