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[(X × 2 + 3) × 4 : 5 + 6]+ 7 - 8 = 9

Răspuns :

Rodi11
[(X × 2 + 3) × 4 : 5 + 6]+ 7 - 8 = 9
[(X × 2 + 3) × 4 : 5 + 6]+ 7 = 9+8
[(X × 2 + 3) × 4 : 5 + 6]+ 7 =17
(X × 2 + 3) × 4 : 5 + 6=17-7
(X × 2 + 3) × 4 : 5 + 6=10
(X × 2 + 3) × 4 : 5 =10-6
(X × 2 + 3) × 4 : 5 =4
(X × 2 + 3) × 4 =4×5
(X × 2 + 3) × 4 =20
X × 2 +3 =20:4
X × 2 +3 =5
X × 2=5-3
X × 2 =2
X =2:2
X=1

PROBA
[( 1 × 2 + 3) × 4 : 5 + 6]+ 7 - 8 = 9
(5×4 :5 +6)+7-8=9
(20 :5 +6) +7-8=9
(4+6)+7-8=9
10 +7-8=9
17-8=9
9 = 9 ( Adevarat )

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