2.
1) 4а+а-6а= -а
2) 7b-3b-4b= 0b= 0
3.
4a+5b-7a+4+3b= (4-7)a+(5+3)b+4= -3a+8b+4
1251.
1) 5x+4x= 9x
2) 3y-y= 2y
3) 7m+m= 8m
4) 4b+b-2b= 3b
5) -2a-3a= -5a
6) 2p+2p= 4p
7) -2n+n= -n
8) 7m-2m-5m= 0m= 0
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Answers & Comments
2.
1) 4а+а-6а= -а
2) 7b-3b-4b= 0b= 0
3.
4a+5b-7a+4+3b= (4-7)a+(5+3)b+4= -3a+8b+4
1251.
1) 5x+4x= 9x
2) 3y-y= 2y
3) 7m+m= 8m
4) 4b+b-2b= 3b
5) -2a-3a= -5a
6) 2p+2p= 4p
7) -2n+n= -n
8) 7m-2m-5m= 0m= 0