6(4-х)+3х=3.
24-6х+3х=3.
24-9х=3.
9х=21.
х=21/9.
х=2 1/3.
Ответ:2 1/3.
Logx=t
t^2+t=2
t^2+t-2=0
t=-1+3)/2=1
t=(-1-3)/2=-2
logx=1
x=5
loqx=-2
x=1/25
6^12/3^11 × 4^5 = 6^12/3^5 × 4^5 × 3^6 = 6^12/12^5 × 3^6 = 6^12/6^5 × 2^5 × 3^6 = 6^7/2^5 × 3^6 = 6^7 /2^5 × 3^5 × 3 = 6^7/6^5 × 3 = 6^2/3 = (6 × 6)/3 = 2 × 6 = 12.