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Todas as categorias

12 respostas

Caro amigo :

Basta você seguir o sentido contrário das operações , tá ?

16 x 5 = 80

80 - 50 = 30

30 : 2 = 15

15 + 23 = 38

38 x 3 = 114

Em resumo , o número desejado é 114
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Verificação :

114 : 3 = 38 ----> 38-23 = 15 ---> 15X2=30 ---> 30+50=80 ---

> 80:5 = 16 .

Um abraço !!!

2007-03-16 08:10:49 · answer #1 · answered by Carlos Homero Gonçalves Carrocin 6 · 0 2

((x/3-23)*2+50)/5=16
x = ((16*5-50)/2+23)*3
x = 114

2007-03-16 15:08:48 · answer #2 · answered by Spy7 3 · 1 0

114. [(16 x 5 - 50) :2 + 23] x 3 = 114

2007-03-17 19:44:33 · answer #3 · answered by ? 7 · 0 0

(23 - x/3) * 2 + 50 : 5 = 16
(69 - x)/3 * 2 + 50 : 5 = 16
(138 - 2x)/3 + 10 = 16
(138 - 2x)/3 = 16 - 10
(138 - 2x)/3 = 6
138 - 2x = 6 * 3
-2x = 18 - 138
x = -120/-2
x = 60
Resposta: 60.
:>:

2007-03-16 20:20:49 · answer #4 · answered by aeiou 7 · 0 0

-232

2007-03-16 16:01:20 · answer #5 · answered by Edson FJ 3 · 0 0

Fiz as operações de trás pra frente e deu certo igual à do Carlos.

16 x 5 = 80

80 - 50 = 30

30 : 2 = 15

15 + 23 = 38

38 x 3 = 114

o número é 114

Prova :

114 : 3 = 38 -> 38-23 = 15-> 15X2=30 -> 30+50=80 ---

> 80:5 = 16 .

2007-03-16 16:19:32 · answer #6 · answered by ~Elvis Did Not Die~ 5 · 0 1

Vamos lá:

transformando em sentença matemática, temos:

{ x / 3 - 23.(2) + 50} / 5 = 16

{ x / 3 - 46 + 50 } / 5 = 16

{ x / 3 + 4 } / 5 = 16

{ ( x + 12) / 3} / 5 = 16

( x + 12) 3 .(5) = 16

5x +12(5) = 16(3)

5x + 60 = 48

5x = 48 - 60

5x = - 12

x = - 12 / 5

x = - 2,4

2007-03-16 15:41:32 · answer #7 · answered by Anonymous · 0 1

114

2007-03-16 15:34:20 · answer #8 · answered by lisbel 2 · 0 1

suponha que seja x esse numero, assim:
{[(x/3) - 23]*2 + 50}/5 = 16
[(x/3) - 23]*2 + 50 = 16*5
[(x/3) - 23]*2 = 80 - 50
[(x/3) - 23]*2 = 30
(x/3) - 23 = 30/2
x/3 = 15 +23
x/3 = 38
x = 38*3
x = 114
espero ter resolvido seu problema

jupia

2007-03-16 15:15:05 · answer #9 · answered by jupia 2 · 1 2

114

2007-03-16 15:14:01 · answer #10 · answered by gaivota 2 · 0 1

O número que você está procurando é o tal de X.
((23 -X/3).2+50)/5=16
(23-X/3).2+50=5.16
(23-X/3)=(5.16-50)/2
(23-X/3)=15
23-15=X/3
8.3=X
X=24

2007-03-16 15:40:42 · answer #11 · answered by B@TOCO 4 · 0 2

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