{100-[0+3×(56+X×9):6]}×123=0


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Răspuns :

Răspuns:

100-[0+3·(56+x·9):6]=0:123

0+3·(56+9x):6=100-0

3·(56+9x)=100·6

56+9x=600:3

9x=200-56

x=144:9

x=16