Question

Solve for x in the following:
2^x+1 = 8^x
7^x+9=49^2x

^= to the power of

Answer 1

Answer:

a. 2 power X+1 = 2 power 3x

so X+1=3x

1=3x-x

1=2x

X=1/2

b. 3 power 2x+1= 27 power X

3 power 2x+1= 3 power 3x

so 2x+1=3x

1 =3x-2x

1= X

X=1