(1/3)^х+1 =27
2^х+2^х+1 =6
(√5)^х-6 =25

1)6/12х+4/12х+3/12х=26/2713/12х=26/27х=26/27÷13/12х=26/27×12/13х=8/9================2)2 1/3х=1 2/15+2 3/57/3х=17/15+13/57/3х=17/15+39/157/3х=56/15х=56/15÷7/3х=56/15×3/7х=8/5=1 3/5================3)5 3/5х=4 5/12-2 2/328/5х=53/12-8/328/5х=53/12-32/1228/5х=21/1228/5х=7/4х=7/4÷28/5х=7/4×5/28х=5/16===============4)5/18х=10 5/6-2 1/25/18х=65/6-5/25/18х=65/6-15/65/18х=50/65/18х=25/3х=25/3÷5/18х=25/3×18/5х=30

1/3^x+1=(1/3)^-3x+1=-3x=-42)2^x+2*2^x=62^x=2x=13)5^((x-6)/2)=5^2(x-6)/2=2x-6=4x=10