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131+4*{36-32:16*[15+(24:x-20:5)*9}+7}=183

Răspuns :

131+4*{36-32:16*[15+(24:x-20:5)*9]+7}=183

4*{36-2*[15+(24:x-4)*9]+7}=183-131

4*{36-2*[15+(24:x-4)*9]+7}=52

36-2*[15+(24:x-4)*9]+7=52:4

36-2*[15+(24:x-4)*9]+7=13

36-2*[15+(24:x-4)*9]=13-7

36-2*[15+(24:x-4)*9]=6

2*[15+(24:x-4)*9]=36-6

2*[15+(24:x-4)*9]=30

15+(24:x-4)*9=30:2

15+(24:x-4)*9=15

(24:x-4)*9=15-15

(24:x-4)*9=0

24:x-4=0:9

24:x-4=0

24:x=0+4

24:x=4

x=24:4

x=6