Question

помогитееее!!!!!!!)))))

Answer 1

1) log5(3x-4)=log5(2x-3)
 3x-4=2x-33x-4-2x=-3
x-4=-3
x=1
2)log7log6log3(72/4-x)=0
7^0=log6log3(72/4-x)
1=log6log3(72/4-x)
6=log3(72/4-x)
log3(72/4-x)=6
3^6=72/4-x
729=72/4-x
72=2916-729x
-729x=-2844
x=316/81
Третий хз)