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0} \atop {3x-15>0}} \right. =>\left \{ {{x>-3} \atop {x>5}} \right. =>x>5 \\ log_2(x+3)=log_2(3x-15) \\ x+3=3x-15 \\ 2x=18 \\ x=9" alt="ODZ: \left \{ {{x+3>0} \atop {3x-15>0}} \right. =>\left \{ {{x>-3} \atop {x>5}} \right. =>x>5 \\ log_2(x+3)=log_2(3x-15) \\ x+3=3x-15 \\ 2x=18 \\ x=9" align="absmiddle" class="latex-formula">