log7(3x-8)=2
0}} \right. => \left \{ {{3x=49+8} \atop {3x>8}} \right. => \left \{ {{x=57/3 } \atop {x>8/3}} \right. " alt="\left \{ {{ 7^{2} = 3x-8 } \atop {3x-8>0}} \right. => \left \{ {{3x=49+8} \atop {3x>8}} \right. => \left \{ {{x=57/3 } \atop {x>8/3}} \right. " align="absmiddle" class="latex-formula">
x= 19
Ответ: 19.