7^(x+1)+3*7(x)=2^(x+5)+3*2^(x)

Question

7^(x+1)+3*7(x)=2^(x+5)+3*2^(x)

Answer 1

7^(x+1)+3*7(x)=2^(x+5)+3*2^(x)
7^(x)*(7+3)=2^(x)*(2^5+3)
7^x*10=2^x*35
(7/2)^x=7/2
x=1

Answer 2

7*7^x+3*7^x=32*2^x+3*2^x
10*7^x=35*2^x
(7/2)^x=(7/2)
x=1