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Calculati explicit:      [(x-1):100+90]:10-10=0

Răspuns :

[tex]Facem~mersul~invers: \\ \[[(x-1):100+90]:10-10=0|+10 \\ \[[(x-1):100+90]:10=10|*10 \\ (x-1):100+90=100|-90 \\ (x-1):100=10|*100 \\ x-1=1000|+1 \\ x=1001 \\ Faci~asa~la~toate,~sper~ca~ai~inteles~cum~se~fac![/tex]