Question

What’s the answer to this question below. A b c or d

Answer 1

The right choice is (2) 0

Explanation:

7 ^(3a-3) = 7^(3a-3)

= -3a -3 = 3a -3

= -3a = 3a

-3a -3a = 0

-6a = 0

a= 0

Answer 2

`a=0`

Explanation:

The given expression is;

`((1)/(7))^(3a+3) =343^(a-1)`

This implies that;

`7^(-1(3a+3)) =7^(3(a-1))`

Equate the exponents;

`-1(3a+3) =3(a-1)`

Expand;

`-3a-3 =3a-3`

`-3a-3a =-3+3`

`-6a=0`

`a=0`