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Replace the same characters by the same numerals so that the mathematical operations are correct.

```IFIB - EBG = CEH
-	 -	 +
CCE  /  GD =  FE
------------------------
EFF  + EED = CBA[/code]

[size=4][color=#FF0000][b]This old topic is locked since solution is already provided in the Spoiler below.

Pls visit New Puzzles section to see always fresh brain teasers.[/b][/color][/size]

[spoiler=Solution][b]No. 2 - solution[/b]

A=9, B=7, C=8, D=6, E=4, F=3, G=2, H=5, I=1

[code]1317 - 472 = 845
-	 -	 +
884  /  26 =  34
------------------------
433  + 446 = 879```

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• 5 months later... No. 2 - Back to the Cryptograms and Algebra Puzzles

Replace the same characters by the same numerals so that the mathematical operations are correct.

IFIB - EBG = CEH

- - +

CCE / GD = FE

------------------------

EFF + EED = CBA

From IFID - CCE = EFF follows that I = 1

From CCE / GD = FE follows that D x E must be xE, which limits the possibilities to E = 4 and D = 6, or E = 5 and D = 3, 7 or 9 (other options not possible, because 1 is already in use)

If we assume E to be 4, we get 4BG - G6 = 446, which would imply G = 2, and therefor B = 7, and because of 1F17 - 472 = C4H, H would become 5.

C45 + F4 = C7A would then imply that A = 9, and from 4FF + 446 = C79 would follow that F = 3 and C = 8

884 / 26 = 34, which covers the CCE / GD = FE line perfectly in accordance with all the above.

1317 - 472 = 845

- - +

884 / 26 = 34

----------------

433 + 446 = 879

A = 9, B = 7, C = 8, D = 6, E = 4, F = 3, G = 2, H = 5, I = 1

Since this solution fits perfectly, I see hardly a need to try the E = 5 option. Hardly reasonable to expect that there are two valid solutions to this type of puzzle.

Thanx for having this section, Rookie. I've always loved this kind of puzzles

BoilingOil

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• 3 years later... Hey Rookie...

I am new to the site as you know.. I love Crypto puzzles and ones with algebra in them as well but I am having a hard time understanding these puzzles. Why is there 3 layers of numbers and mutiple operations? Im not much of the math whiz here and certainly know nothing more than your basic algebra.. lol But I have never seen these kinds of equations before. Can you possibly explain a little about how to solve so I can get involved? If not I understand the reasoning... Thanks in advance though!

##### Share on other sites Hey Rookie...

I am new to the site as you know.. I love Crypto puzzles and ones with algebra in them as well but I am having a hard time understanding these puzzles. Why is there 3 layers of numbers and mutiple operations? Im not much of the math whiz here and certainly know nothing more than your basic algebra.. lol But I have never seen these kinds of equations before. Can you possibly explain a little about how to solve so I can get involved? If not I understand the reasoning... Thanks in advance though!

I wanted to say as well.. I have figured part of it out.. but it doesnt seem to work for all puzzles.... if this helps.

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• 6 months later... From IFID - CCE = EFF follows that I = 1

From CCE / GD = FE follows that D x E must be xE, which limits the possibilities to E = 4 and D = 6, or E = 5 and D = 3, 7 or 9 (other options not possible, because 1 is already in use)

If we assume E to be 4, we get 4BG - G6 = 446, which would imply G = 2, and therefor B = 7, and because of 1F17 - 472 = C4H, H would become 5.

C45 + F4 = C7A would then imply that A = 9, and from 4FF + 446 = C79 would follow that F = 3 and C = 8

884 / 26 = 34, which covers the CCE / GD = FE line perfectly in accordance with all the above.

1317 - 472 = 845

- - +

884 / 26 = 34

----------------

433 + 446 = 879

A = 9, B = 7, C = 8, D = 6, E = 4, F = 3, G = 2, H = 5, I = 1

Since this solution fits perfectly, I see hardly a need to try the E = 5 option. Hardly reasonable to expect that there are two valid solutions to this type of puzzle.

Thanx for having this section, Rookie. I've always loved this kind of puzzles <!-- s:D --><!-- s:D -->

BoilingOil

I know your solution works, but I'm curious in the line "From CCE / GD = FE follows that D x E must be xE" why are the only possibilities for this sentence only:

D=3, E=5

D=6, E=4

D=7, E=5

D=9, E=5

Why not also:

D=6, E=2

D=6, E=8

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