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Rezolvati ecuatia :
512:(9x-19)-4=120:2


Răspuns :

[tex]512:(9x-19)-4=120:2 \\ 512:(9x-19)-4=60 \\ 512:(9x-19)=60+4 \\ 512:(9x-19)=64 \\ 9x-19=512:64 \\ 9x-19=8 \\ 9x=8+19 \\ 9x=27 \\ x=27:9 \\ x=3[/tex]
120:2=60
512:(9x-19)=64
9x-19=512:64=8
9x=27
x=3