Упростите выражения:
1) 2,3а+4,8а-2,9а
2)0,43b-0,28b-0,09b
3)17,33с+8,9с+11,5с
4)6d-2,91d+4,6d
1) 2,3а+4,8а-2,9а
2)0,43b-0,28b-0,09b
3)17,33с+8,9с+11,5с
4)6d-2,91d+4,6d
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Answers & Comments
2) b(0,43-0,28-0,09)=0,06b
3)с(17,33+8,9+11,5)=37,73с
4)d(6-2,91+4,6)=7.69d