Respostas

2013-05-12T12:39:12-03:00

log3(2x-7)=4

 

 

(2x-7)=3^{4}

 

(2x-7)=81

(2x)=7+81

(2x)=88

x=88/2

x=44

 

ESPERO TER AJUDADO

THIAU

2 4 2