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900-[816:4+(x-168)+234]:2+676=1344

Răspuns :

900-[816:4+(x-168)+234]:2+676=1344 |-676900-[204+(x-168)+234]:2=1344-676
900-[438+(x-168)]:2=668
[438+(x-168)]:2=900-668
[438+(x-168)]:2=232 |·2
438+(x-168)=464 |-438
x-168=464-438
x-168=26 |+168
x=26+168
x=194

Raspuns: 194