Номер 111.
1) 3х+11х= 14х.
2) 25у-14у= 11у.
3) 28а+а= 29а.
4) 89m-m= 88m.
5) 8x+12x+21x= 20x+21x= 41x.
6) 26y+38y-42y= 64y-42y= 22y.
7) 13k+42k-14= 55k-14.
8) 84b-b+18= 83b+18.
9) 64c+12c-14c-28c= 76c-14c-28c= 62c-28c= 34c.
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Answers & Comments
Номер 111.
1) 3х+11х= 14х.
2) 25у-14у= 11у.
3) 28а+а= 29а.
4) 89m-m= 88m.
5) 8x+12x+21x= 20x+21x= 41x.
6) 26y+38y-42y= 64y-42y= 22y.
7) 13k+42k-14= 55k-14.
8) 84b-b+18= 83b+18.
9) 64c+12c-14c-28c= 76c-14c-28c= 62c-28c= 34c.