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rezolvati ecuatia

2x-9=27


Răspuns :

2x-9=27
2x=27+9
2x=36
x=36:2
x=18
[tex]2x-9=27|+9 \\ 2x=27+9 \\ 2x=36|:2 \\ x=36:2 \\ \boxed{x=18}[/tex]