Question

приведите подобные слагаемые

Answer 1

1) 7а-19а+28а-2а=14а
2) -8х+16х-23х+17х=2х
3)2,7m-n+3.5m-2.7n=6.2m-3.7n
4)2.9c+1.8-5.2c-1.2=0.6-2.3c
5) 2.6p-0.7k+1.3-3.1p+2.8k=2.1k-0.5p=1.3
6)-5/7a+4/9b+9/14a-7/15b=-5/7a+9/14a+4/9b-7/15b=-10/14a+9/14a-20/45b-21/45b=-1/14a+1/45b

Answer 2

спс