-3.9-4,2с+1,5с30x-33,81x-2,79-101b+17b-4220,11d-40,01+13

Question

-3.9-4,2с+1,5с
30x-33,81x-2,79
-101b+17b-42
20,11d-40,01+13

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Comments

1. = -3/10*(13+9с) 2. = -6.6х

Answer 1

1) -6,6с
2)-6,54х
3)-42(2b +1)
4)1/100(2011d-2701)