Question

3.2b-4.3b-3.2b
1.9d-4.2d+3.1d
1/3b+1/5b-1215b
приведение подобных слагаемых

Answer 1

3.2b-4.3b-3.2b=-4.3b
1.9d-4.2d+3.1d=0.8d
1/3b+1/5b-1215b=-1214.7/15b