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(3x9 +9 :h) +5 x 4 :2-(12-4x 2)=6x6

Răspuns :

(3x9 +9 :h) +5 x 4 :2-(12-4x 2)=6x6
(27 +9 :h) +20 :2-(12-8)=36
(27+9 :h)+10 - 4=36

(27+9 :h)+10=36+4
(27+9 :h)+10=40
(27+9 :h)=40-10
(27+9 :h)=30
9 :h=30-27
9 :h=3
h=9:3
h=3